English dictionary


si |ˌes ˈaɪ| — a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors

Siamese |ˌsaɪəˈmiːz| — a branch of the Tai languages

sib |sɪb| — a person's brother or sister

Siberian |saɪˈbɪriən| — a native or inhabitant of Siberia

sibilant |ˈsɪbɪlənt| — a consonant characterized by a hissing sound (like s or sh)

sibilate |ˈsɪbɪleɪt| — pronounce with an initial sibilant

sibilation  — a fricative sound (especially as an expression of disapproval)

sibling |ˈsɪblɪŋ| — a person's brother or sister

sibyl |ˈsɪbl| — a woman who tells fortunes

sibylline |ˈsɪbɪlaɪn| — resembling or characteristic of a prophet or prophecy

sic |sɪk| — urge to attack someone

siccative |ˈsikədiv| — a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture)

Sicilian |ˌsɪˈsɪliən| — a resident of Sicily

sick |sɪk| — people who are sick

sickbay |ˈsɪkbeɪ| — (nautical) a room for the treatment of the sick or injured (as on a ship)

sickbed |ˈsɪkbed| — the bed on which a sick person lies

sicken |ˈsɪkən| — cause aversion in; offend the moral sense of

sickening |ˈsɪkənɪŋ| — causing or able to cause nausea

sickeningly |ˈsɪkənɪŋli| — in a disgusting manner or to a disgusting degree

sickish |ˈsɪkɪʃ| — feeling nausea; feeling about to vomit

sickle |ˈsɪkl| — an edge tool for cutting grass or crops; has a curved blade and a short handle

sickly |ˈsɪkli| — unhealthy looking

sickness |ˈsɪknəs| — impairment of normal physiological function affecting part or all of an organism

sickroom |ˈsɪkruːm| — a room to which a sick person is confined

side |saɪd| — a place within a region identified relative to a center or reference location

side-slip |ˈsaɪd sliːp| — slide sideways through the air in a downward direction in an airplane along an inclined lateral axis

sidebar |ˈsaɪdbɑːr| — (law) a courtroom conference between the lawyers and the judge that is held out of the jury's hearing

sideboard |ˈsaɪdbɔːrd| — a removable board fitted on the side of a wagon to increase its capacity

sidecar |ˈsaɪdkɑːr| — a cocktail made of orange liqueur with lemon juice and brandy

sidekick |ˈsaɪdkɪk| — a close friend who accompanies his buddies in their activities

sidelight |ˈsaɪdlaɪt| — light carried by a boat that indicates the boat's direction; vessels at night carry a red light on the port bow and a green light on the starboard bow

sideline |ˈsaɪdlaɪn| — a line that marks the side boundary of a playing field

sidelong |ˈsaɪdlɔːŋ| — on the side

sidereal |saɪˈdɪriəl| — of or relating to the stars or constellations

sidesaddle |ˈsaɪdsædl| — a saddle for a woman; rider sits with both feet on the same side of the horse

sideshow |ˈsaɪdʃoʊ| — a subordinate incident of little importance relative to the main event

sideslip |ˈsaɪdslɪp| — an unexpected slide

sidesman |ˈsaɪdzmən| — (Church of England) an assistant to the churchwarden; collects offerings of money in the church

sidesplitting |ˈsaɪdˌsplɪtɪŋ| — very funny

sidestep |ˈsaɪdstep| — a step to one side (as in boxing or dancing)

sidestroke |ˈsaɪdstroʊk| — a swimming stroke in which the arms move forward and backward while the legs do a scissors kick

sidetrack |ˈsaɪdtræk| — a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass

sidewalk |ˈsaɪdwɔːk| — walk consisting of a paved area for pedestrians; usually beside a street or roadway

sidewall |sʌɪdˈwɔːl| — the side of an automobile tire

sideward |ˈsaɪdwərd| — toward one side

sidewards |ˈsaɪdwədz| — toward one side

sideway  — with one side forward or to the front

sideways |ˈsaɪdweɪz| — with one side forward or to the front

sidewinder |ˈsaɪdwaɪndər| — small pale-colored desert rattlesnake of southwestern United States; body moves in an s-shaped curve

siding |ˈsaɪdɪŋ| — a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass

sidle |ˈsaɪdl| — move unobtrusively or furtively

siege |siːdʒ| — the action of an armed force that surrounds a fortified place and isolates it while continuing to attack

sienna |siˈenə| — an earth color containing ferric oxides; used as a pigment

sierra |siˈerə| — a range of mountains (usually with jagged peaks and irregular outline)

siesta |siˈestə| — a nap in the early afternoon (especially in hot countries)

sieve |sɪv| — a strainer for separating lumps from powdered material or grading particles

sift |sɪft| — move as if through a sieve

sifter |ˈsɪftər| — a household sieve (as for flour)

sifting |ˈsɪftɪŋ| — the act of separating grain from chaff

sigh |saɪ| — an utterance made by exhaling audibly

sight |saɪt| — an instance of visual perception

sighted |ˈsaɪtɪd| — able to see

sighting |ˈsaɪtɪŋ| — the act of observing

sightless |ˈsaɪtləs| — lacking sight

sightly |saɪtli| — very pleasing to the eye

sightseeing |ˈsaɪtsiːɪŋ| — going about to look at places of interest

sightseer |ˈsaɪtsɪr| — a tourist who is visiting sights of interest

sigma |ˈsɪɡmə| — the 18th letter of the Greek alphabet

sign |saɪn| — a perceptible indication of something not immediately apparent (as a visible clue that something has happened)

sign away |ˈsaɪn əˈweɪ| — formally assign ownership of

sign in |ˈsaɪn ɪn| — announce one's arrival, e.g. at hotels or airports

sign off |ˈsaɪn ˈɒf| — cease broadcasting; get off the air; as of radio stations

sign on |ˈsaɪn ɑːn| — engage by written agreement

sign over |ˈsaɪn ˈoʊvr̩| — formally assign ownership of

sign up |ˈsaɪn ʌp| — engage by written agreement

signal |ˈsɪɡnəl| — any nonverbal action or gesture that encodes a message

signal-to-noise  — the ratio of signal intensity to noise intensity

signalize |ˈsɪɡnəlaɪz| — provide with traffic signals

signaller |ˈsɪɡnələr| — someone who communicates by signals

signalman |ˈsɪɡnəlmən| — a railroad employee in charge of signals and point in a railroad yard

signatory |ˈsɪɡnətɔːri| — someone who signs and is bound by a document

signature |ˈsɪɡnətʃər| — your name written in your own handwriting

signboard |ˈsaɪnbɔːrd| — structure displaying a board on which advertisements can be posted

signed |ˈsaɪnd| — used of the language of the deaf

signer |ˈsaɪnər| — someone who can use sign language to communicate

signet |ˈsiɡnit| — a seal (especially one used to mark documents officially)

significance |sɪɡˈnɪfɪkəns| — the quality of being significant

significant |sɪɡˈnɪfɪkənt| — of considerable importance, size, or worth

significantly |sɪɡˈnɪfɪkəntli| — in a statistically significant way

signification |ˌsɪɡnɪfɪˈkeɪʃn| — the message that is intended or expressed or signified

significative |sɪgˈnɪfɪkətɪv| — (usually followed by `of') pointing out or revealing clearly

signifier |ˈsɪɡnɪfaɪər| — the phonological or orthographic sound or appearance of a word that can be used to describe or identify something

signify |ˈsɪɡnɪfaɪ| — denote or connote

signing |ˈsaɪnɪŋ| — language expressed by visible hand gestures

signpost |ˈsaɪnpoʊst| — a post bearing a sign that gives directions or shows the way

Sikh |siːk| — an adherent of Sikhism

silage |ˈsaɪlɪdʒ| — fodder harvested while green and kept succulent by partial fermentation as in a silo

silence |ˈsaɪləns| — the state of being silent (as when no one is speaking)

silenced |ˈsaɪlənst| — reduced to silence

silencer |ˈsaɪlənsər| — short tube attached to the muzzle of a gun that deadens the sound of firing

silent |ˈsaɪlənt| — marked by absence of sound

silently |ˈsaɪləntli| — without speaking

silex |ˈsɪləks| — a pure form of finely ground silica

silhouette |ˌsɪluˈet| — an outline of a solid object (as cast by its shadow)

silica |ˈsɪlɪkə| — a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite

silicate |ˈsɪlɪkeɪt| — a salt or ester derived from silicic acid

siliceous |sɪˈlɪʃəs| — relating to or containing or resembling silica

silicon |ˈsɪlɪkən| — a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors

silicone |ˈsɪlɪkoʊn| — any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation

silk |sɪlk| — a fabric made from the fine threads produced by certain insect larvae

silken |ˈsɪlkən| — having a smooth, gleaming surface reflecting light

silkworm |ˈsɪlkwɜːrm| — the commercially bred hairless white caterpillar of the domestic silkworm moth which spins a cocoon that can be processed to yield silk fiber; the principal source of commercial silk

silky |ˈsɪlki| — having a smooth, gleaming surface reflecting light

sill |sɪl| — structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure

sillabub |ˈsɪləbʌb| — spiced hot milk with rum or wine

silliness |ˈsɪlinəs| — a ludicrous folly

silly |ˈsɪli| — a word used for misbehaving children

silo |ˈsaɪloʊ| — a cylindrical tower used for storing silage

silt |sɪlt| — mud or clay or small rocks deposited by a river or lake

Silurian |saɪˈljʊərɪən| — from 425 million to 405 million years ago; first air-breathing animals

silvan |ˈsɪlvən| — a spirit that lives in or frequents the woods

silver |ˈsɪlvər| — a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

silver-plate |ˈsɪlvərˈpleɪt| — plate with silver

silver-tongued |ˈsɪlvəˈtʌŋd| — expressing yourself readily, clearly, effectively

silverfish |ˈsɪlvərfɪʃ| — silver-grey wingless insect found in houses feeding on book bindings and starched clothing

silvern |ˈsilvərn| — resembling or reminiscent of silver

silversmith |ˈsɪlvərsmɪθ| — someone who makes or repairs articles of silver

silverware |ˈsɪlvərwer| — tableware made of silver or silver plate or pewter or stainless steel

silvery |ˈsɪlvəri| — resembling or reminiscent of silver

silviculture |ˈsɪlvəˌkʌltʃər| — the branch of forestry dealing with the development and care of forests

simian |ˈsɪmiən| — an ape or monkey

similar |ˈsɪmələr| — (of words) expressing closely related meanings

similarity |ˌsɪməˈlærəti| — the quality of being similar

similarly |ˈsɪmələrli| — in like or similar manner

simile |ˈsɪməli| — a figure of speech that expresses a resemblance between things of different kinds (usually formed with `like' or `as')

similitude |sɪˈmɪlɪtuːd| — similarity in appearance or character or nature between persons or things

simmer |ˈsɪmər| — temperature just below the boiling point

simmer down |ˈsɪmər ˈdaʊn| — become quiet or calm, especially after a state of agitation

simmering |ˈsɪmərɪŋ| — cooking in a liquid that has been brought to a boil

simony |ˈsaɪməni| — traffic in ecclesiastical offices or preferments

simoom |sɪˈmuːm| — a violent hot sand-laden wind on the deserts of Arabia and North Africa

simoon |sɪˈmuːn| — a violent hot sand-laden wind on the deserts of Arabia and North Africa

simper |ˈsɪmpər| — a silly self-conscious smile

simple |ˈsɪmpl| — any herbaceous plant having medicinal properties

simple-minded |ˈsɪmpəl ˈmɑɪndɪd| — lacking subtlety and insight

simpleness  — a lack of penetration or subtlety

simpleton |ˈsɪmpltən| — a person lacking intelligence or common sense

simplicity |sɪmˈplɪsəti| — the quality of being simple or uncompounded

simplification |ˌsɪmpləfɪˈkeɪʃən| — an explanation that omits superfluous details and reduces complexity

simplify |ˈsɪmplɪfaɪ| — make simpler or easier or reduce in complexity or extent

simplism |ˈsimplizəm| — a simplification that goes too far (to the point of misrepresentation)

simplistic |sɪmˈplɪstɪk| — characterized by extreme and often misleading simplicity

simply |ˈsɪmpli| — and nothing more

simulacrum |ˌsɪmjuˈleɪkrəm| — an insubstantial or vague semblance

simulate |ˈsɪmjuleɪt| — reproduce someone's behavior or looks

simulated |ˈsɪmjuleɪtɪd| — not genuine or real; being an imitation of the genuine article

simulation |ˌsɪmjəˈleɪʃən| — the act of imitating the behavior of some situation or some process by means of something suitably analogous (especially for the purpose of study or personnel training)

simulator |ˈsɪmjuleɪtər| — a machine that simulates an environment for the purpose of training or research

simultaneity |ˌsɪmltəˈnɪəti| — happening or existing or done at the same time

simultaneous |ˌsaɪmlˈteɪniəs| — occurring or operating at the same time

simultaneously |ˌsaɪmlˈteɪniəsli| — at the same instant

simultaneousness |ˌsɪmlˈteɪnɪəsnəs| — happening or existing or done at the same time

sin |ˌes aɪ ˈen| — estrangement from god

sinapism |ˈsɪnəˌpɪzəm| — a plaster containing powdered black mustard; applied to the skin as a counterirritant or rubefacient

sincere |sɪnˈsɪr| — characterized by a firm and humorless belief in the validity of your opinions

sincerely |sɪnˈsɪrli| — with sincerity; without pretense

sincerity |sɪnˈserəti| — an earnest and sincere feeling

sinciput |ˈsinsəpət| — the front part of the head or skull (including the forehead)

sine |saɪn| — ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle

sinecure |ˈsaɪnɪkjʊr| — a benefice to which no spiritual or pastoral duties are attached

sinew |ˈsɪnjuː| — a cord or band of inelastic tissue connecting a muscle with its bony attachment

sinewy |ˈsɪnjuːi| — (of meat) full of sinews; especially impossible to chew

sinful |ˈsɪnfl| — characterized by iniquity; wicked because it is believed to be a sin

sinfulness |ˈsɪnfəlnəs| — estrangement from god

sing |sɪŋ| — deliver by singing

singe |sɪndʒ| — a surface burn

singer |ˈsɪŋər| — a person who sings

Singhalese |ˌsɪŋhəˈliːz| — a native or inhabitant of Sri Lanka

singing |ˈsɪŋɪŋ| — the act of singing vocal music

single |ˈsɪŋɡl| — a base hit on which the batter stops safely at first base

single-breasted |ˌsɪŋɡl ˈbrestɪd| — (of clothing) closing with a narrow overlap and fastened with a single row of buttons

single-celled  — having a single cell (and thus not divided into cells)

single-handed |ˈsɪŋɡəlˈhændəd| — without assistance

single-handedly |ˌsɪŋɡəlˈhændədli| — without assistance

single-minded |ˌsɪŋɡl ˈmaɪndɪd| — determined

single-mindedness  — characterized by one unified purpose

singleness |ˈsɪŋɡlnəs| — without hypocrisy

singles |ˈsɪŋɡəlz| — badminton played with one person on each side

singlestick |ˈsɪŋɡlstɪk| — a stick used instead of a sword for fencing

singlet |ˈsɪŋɡlət| — a collarless men's undergarment for the upper part of the body

singleton |ˈsɪŋɡltən| — a single object (as distinguished from a pair)

singly |ˈsɪŋɡli| — one by one; one at a time

singsong |ˈsɪŋˌsɔŋ| — a regular and monotonous rising and falling intonation

singular |ˈsɪŋɡjələr| — the form of a word that is used to denote a singleton

singularity |ˌsɪŋɡjuˈlærəti| — the quality of being one of a kind

singularly |ˈsɪŋɡjələrli| — in a singular manner or to a singular degree

Sinhalese |ˌsɪnhəˈliːz| — a native or inhabitant of Sri Lanka

sinister |ˈsɪnɪstər| — threatening or foreshadowing evil or tragic developments

sinistrorsal  — spiraling upward from right to left

sink |sɪŋk| — plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe

sinker |ˈsɪŋkər| — a small ring-shaped friedcake

sinkhole |ˈsɪŋkhoʊl| — a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof

sinking |ˈsɪŋkɪŋ| — a descent as through liquid (especially through water)

sinless |ˈsinlis| — free from sin

sinner |ˈsɪnər| — a person who sins (without repenting)

sinologist |saɪˈnɒlədʒɪst| — a student of Chinese history and language and culture

sinology |saɪˈnɑːlədʒi| — the study of Chinese history and language and culture

sinter |ˈsin(t)ər| — cause (ores or powdery metals) to become a coherent mass by heating without melting

sinuate |ˈsɪnjʊət| — curved or curving in and out

sinuosity |ˌsɪnjʊˈɒsɪti| — having curves

sinuous |ˈsɪnjuəs| — curved or curving in and out

sinus |ˈsaɪnəs| — an abnormal passage leading from a suppurating cavity to the body surface

sinusitis |ˌsaɪnəˈsaɪtɪs| — inflammation of one of the paranasal sinuses

Sioux |suː| — a member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains

sip |sɪp| — a small drink

siphon |ˈsaɪfn| — a tube running from the liquid in a vessel to a lower level outside the vessel so that gravity forces the liquid through the tube

sir |sɜːr| — term of address for a man

sirdar |ˈsɝːdɑːrr| — an important person in India

sire |ˈsaɪər| — a title of address formerly used for a man of rank and authority

siren |ˈsaɪrən| — a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived

sirloin |ˈsɜːrlɔɪn| — the portion of the loin (especially of beef) just in front of the rump

sirocco |sɪˈrɑːkoʊ| — a windstorm that lifts up clouds of dust or sand

sirrah |ˈsirə| — formerly a contemptuous term of address to an inferior man or boy; often used in anger

sirup |ˈsɪrəp| — a thick sweet sticky liquid

sis |sɪs| — a female person who has the same parents as another person

sisal |ˈsaɪsl| — a plant fiber used for making rope

siskin |ˈsiskin| — small yellow-and-black Eurasian finch with a sharp beak

sissified |ˈsɪsɪfaɪd| — having unsuitable feminine qualities

sissy |ˈsɪsi| — a timid man or boy considered childish or unassertive

sister |ˈsɪstər| — a female person who has the same parents as another person

sister-in-law |ˈsɪstərɪnˌlɔːr| — the sister of your spouse

sisterhood |ˈsɪstərhʊd| — the kinship relation between a female offspring and the siblings

sisterly |ˈsɪstərli| — like or characteristic of or befitting a sister

Sisyphean |ˌsɪsɪˈfiːən| — both extremely effortful and futile

sit |sɪt| — be seated

sit back |ˈsɪt ˈbæk| — settle into a comfortable sitting position

sit by |ˈsɪt baɪ| — be inactive or indifferent while something is happening

sit down |ˈsit ˌdoun| — take a seat

sit in |ˈsid ˌin| — attend as a visitor

sit out |ˈsɪt ˈaʊt| — not participate in (an activity, such as a dance or a sports event)

sit up |ˈsid ˌəp| — not go to bed

sit-down |ˈsit ˌdoun| — a strike in which workers refuse to leave the workplace until a settlement is reached

sit-in |ˈsid ˌin| — a form of civil disobedience in which demonstrators occupy seats and refuse to move

sit-up |ˈsid ˌəp| — a stomach exercise in which a person sits up from a supine position without using the arms for leverage

sitcom |ˈsɪtkɑːm| — a humorous drama based on situations that might arise in day-to-day life

site |saɪt| — the piece of land on which something is located (or is to be located)

sitter |ˈsɪtər| — Dutch astronomer who calculated the size of the universe and suggested that it is expanding (1872-1934)

sitting |ˈsɪtɪŋ| — (photography) the act of assuming a certain position (as for a photograph or portrait)

situate |ˈsɪtʃueɪt| — determine or indicate the place, site, or limits of, as if by an instrument or by a survey

situated |ˈsɪtʃuːˌetəd| — situated in a particular spot or position

situation |ˌsɪtʃuˈeɪʃn| — the general state of things; the combination of circumstances at a given time

six |sɪks| — the cardinal number that is the sum of five and one

six-footer |sɪks ˈfʊtər| — a person who is at least six feet tall

six-shooter |ˈsɪks ʃuːtər| — a pistol with a revolving cylinder (usually having six chambers for bullets)

sixer |ˈsɪksər| — the cardinal number that is the sum of five and one

sixfold |ˈsɪksfoʊld| — by a factor of six

sixpence |ˈsɪkspəns| — a small coin of the United Kingdom worth six pennies; not minted since 1970

sixpenny |ˈsɪkspəni| — of trifling worth

sixteen |ˌsɪksˈtiːn| — the cardinal number that is the sum of fifteen and one

sixteenth |ˌsɪksˈtiːnθ| — position 16 in a countable series of things

sixth |sɪksθ| — position six in a countable series of things

sixthly |ˈsɪksθli| — in the sixth place

sixties |ˈsɪkstiz| — the decade from 1960 to 1969

sixtieth |ˈsɪkstiəθ| — position 60 in a countable series of things

sixty |ˈsɪksti| — the cardinal number that is the product of ten and six

sixty-five  — being five more than sixty

sixty-four  — being four more than sixty

sizable |ˈsɑɪzəbəl| — fairly large in size

size |saɪz| — the physical magnitude of something (how big it is)

size up |ˈsaɪz ʌp| — to look at critically or searchingly, or in minute detail

sizeable |ˈsaɪzəbl| — fairly large in size

sizzle |ˈsɪzl| — a sizzling noise

sizzling |ˈsɪzlɪŋ| — hot enough to burn with or as if with a hissing sound