at |æt| — a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

at-home |ət ˈhəʊm| — (now historical) A type of reception or party whereby the host says they will be ‘at home’ during specific hours, when guests can come and go as they like.

ataghan  — Alternative form of yataghan.

ataraxia  — peace of mind

ataraxy |ˈatəraksɪ| — The freedom from mental disturbance; imperturbability, dogged indifference.

atavism |ˈætəˌvɪzəm| — a reappearance of an earlier characteristic

atavistic |ˌætəˈvɪstɪk| — characteristic of an atavist

ataxia |əˈtæksɪə| — inability to coordinate voluntary muscle movements; unsteady movements and staggering gait

ataxy |əˈtæksiː| — inability to coordinate voluntary muscle movements; unsteady movements and staggering gait

ate |eɪt| — goddess of criminal rashness and its punishment

atelier |ˌætlˈjeɪ| — a studio especially for an artist or designer

atheism |ˈeɪθɪɪzəm| — a lack of belief in the existence of God or gods

atheist |ˈeɪθɪɪst| — someone who does not believe in the existence of a god

atheistic |ˌeɪθɪˈɪstɪk| — rejecting any belief in gods

atheistical |ˈeɪθɪˈɪstɪkəl| — rejecting any belief in gods

Athena |əˈθiːnə| — (Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva

athenaeum |ˌæθəˈniːəm| — a literary or scientific association for the promotion of learning

Athene |əˈθiːniː| — (Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva

atheneum |ˈæθənuːm| — a literary or scientific association for the promotion of learning

Athenian |əˈθiːnɪən| — a resident of Athens

atherosclerosis |ˌæθərəʊskləˈrəʊsəs| — a stage of arteriosclerosis involving fatty deposits (atheromas) inside the arterial walls, thus narrowing the arteries

athirst |əˈθɜːst| — (usually followed by `for') extremely desirous

athlete |ˈæθliːt| — a person trained to compete in sports

athletic |æθˈletɪk| — vigorously active

athletics |æθˈletɪks| — an active diversion requiring physical exertion and competition

athwart |əˈθwɔːrt| — at right angles to the center line of a ship

Atlantic |ətˈlan(t)ɪk| — the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east

atlas |ˈætləs| — (Greek mythology) a Titan who was forced by Zeus to bear the sky on his shoulders

ATM |ˌeɪ tiː ˈem| — a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade

atmosphere |ˈætməsfɪr| — a particular environment or surrounding influence

atmospheric |ˌætməsˈferɪk| — relating to or located in the atmosphere

atmospherical |ˌætməsˈferɪkəl| — relating to or located in the atmosphere

atmospherics |ˌætməsˈferɪks| — a crackling or hissing noise caused by electrical interference

atoll |ˈætɔːl| — an island consisting of a circular coral reef surrounding a lagoon

atom |ˈætəm| — (physics and chemistry) the smallest component of an element having the chemical properties of the element

atom-bomb |ˈbɑːm| — bomb with atomic weapons

atom-smasher |ˈætəmˈsmæʃə| — (informal) A particle accelerator.

atomic |əˈtɑːmɪk| — immeasurably small

atomicity |ˌætəmˈɪsɪtɪ| — (uncountable) The quality or state of being atomic—of being indivisible.

atomism |ˈætəmɪzəm| — (psychology) a theory that reduces all mental phenomena to simple elements (sensations and feelings) that form complex ideas by association

atomistic |ˌætəˈmɪstɪk| — divided into separate and often disparate elements

atomization  — separating something into fine particles

atomize |ˈætəmaɪz| — spray very finely

atomizer |ˈætəmaɪzər| — a dispenser that turns a liquid (such as perfume) into a fine mist

atomizing |ˈætəmaɪzɪŋ| — Present participle of atomize.

atomy |ˈætəmiː| — A floating mote or speck of dust.

atone |əˈtəʊn| — make amends for

atonement |əˈtəʊnmənt| — compensation for a wrong

atonic |eɪˈtɑːnɪk| — characterized by a lack of tonus

atony |ˈætənɪ| — lack of normal muscular tension or tonus

atop |əˈtɑːp| — on, to, or at the top

atrabilious |ˌatrəˈbɪlɪəs| — irritable as if suffering from indigestion

atrial |ˈeɪtrɪəl| — of or relating to a cavity or chamber in the body (especially one of the upper chambers of the heart)

atrip |əˈtrɪp| — (of an anchor) just clear of the bottom

atrium |ˈeɪtrɪəm| — any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)

atrocious |əˈtrəʊʃəs| — shockingly brutal or cruel

atrociously |əˈtrəʊʃəslɪ| — in a terrible manner

atrociousness |əˈtrəʊʃəsnəs| — the quality of being shockingly cruel and inhumane

atrocity |əˈtrɑːsətɪ| — the quality of being shockingly cruel and inhumane

atrophied |ˈætrəfɪd| — (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use

atrophy |ˈætrəfɪ| — a decrease in size of an organ caused by disease or disuse

attaboy |ˈætəbɔɪ| — (idiomatic, colloquial) Used to show encouragement or approval to a boy or man.

attach |əˈtætʃ| — cause to be attached

attache |ˌætəˈʃeɪ| — a specialist assigned to the staff of a diplomatic mission

attached |əˈtætʃt| — being joined in close association

attachment |əˈtætʃmənt| — a feeling of affection for a person or an institution

attack |əˈtæk| — (military) an offensive against an enemy (using weapons)

attackable |əˈtækəbl| — which may be attacked

attacker |əˈtækər| — someone who attacks

attacking |əˈtækɪŋ| — disposed to attack

attacks |əˈtæks| — plural form of attack

attain |əˈteɪn| — to gain with effort

attainability |əˌteɪnəˈbɪlɪtɪ| — the state of being achievable

attainable |əˈteɪnəbl| — capable of being attained or accomplished

attainder |əˈteɪndər| — cancellation of civil rights

attainment |əˈteɪnmənt| — the act of achieving an aim

attainments |əˈteɪnmənts| — plural form of attainment

attaint |əˈteɪnt| — bring shame or dishonor upon

attar |ˈætər| — essential oil or perfume obtained from flowers

attemper |əˈtempər| — modify the temperature of

attempt |əˈtempt| — earnest and conscientious activity intended to do or accomplish something

attempted |əˈtemptəd| — tried unsuccessfully

attend |əˈtend| — be present at (meetings, church services, university), etc.

attendance |əˈtendəns| — the act of being present (at a meeting or event etc.)

attendant |əˈtendənt| — someone who waits on or tends to or attends to the needs of another

attendee |ˌætenˈdiː| — a person who is present and participates in a meeting

attention |əˈtenʃn| — the process whereby a person concentrates on some features of the environment to the (relative) exclusion of others

attentional  — of or relating to attention

attentions |əˈtenʃənz| — plural form of attention

attentive |əˈtentɪv| — (often followed by `to') giving care or attention

attentively |əˈtentɪvlɪ| — with attention; in an attentive manner

attentiveness |əˈtentɪvnəs| — paying particular notice (as to children or helpless people)

attenuate |əˈtenjʊeɪt| — weaken the consistency of (a chemical substance)

attenuated |əˈtenjʊeɪtɪd| — of an electrical signal; reduced in amplitude with little or no distortion

attenuation |əˌtenjʊˈeɪʃn| — weakening in force or intensity

attest |əˈtest| — provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes

attestation |ˌæteˈsteɪʃən| — the action of bearing witness

attested |əˈtestəd| — established as genuine

attestor |əˈtestə| — (law) a person who attests to the genuineness of a document or signature by adding their own signature

attic |ˈætɪk| — floor consisting of open space at the top of a house just below roof; often used for storage

atticism |ˈadəˌsɪzəm| — A favouring of, or attachment to, the Athenians.

attire |əˈtaɪər| — clothing of a distinctive style or for a particular occasion

attitude |ˈætɪtuːd| — a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways

attitudinal |ˌætɪˈtuːdɪnl| — of or relating to attitudes

attitudinize |ˌætɪˈtjuːdɪnaɪz| — assume certain affected attitudes

attorney |əˈtɜːrnɪ| — a professional person authorized to practice law; conducts lawsuits or gives legal advice

attract |əˈtrækt| — direct toward itself or oneself by means of some psychological power or physical attributes

attractable |əˈtræktəbl| — capable of being magnetized or attracted by a magnet

attracting |əˈtræktɪŋ| — Present participle of attract.

attraction |əˈtrækʃn| — the force by which one object attracts another

attractive |əˈtræktɪv| — having power to arouse interest

attractiveness |əˈtræktɪvnəs| — the quality of arousing interest; being attractive or something that attracts

attractor |əˈtræktər| — an entertainer who attracts large audiences

attributable |əˈtrɪbjətəbl| — capable of being attributed

attribute |əˈtrɪbjuːt| — a construct whereby objects or individuals can be distinguished

attribution |ˌætrɪˈbjuːʃn| — assigning some quality or character to a person or thing

attributive |əˈtrɪbjətɪv| — of adjectives; placed before the nouns they modify

attrition |əˈtrɪʃn| — erosion by friction

attune |əˈtuːn| — adjust or accustom to; bring into harmony with

atwirl  — twirling

atypical |ˌeɪˈtɪpɪkl| — deviating from normal expectations; somewhat odd, strange, or abnormal