obduracy |ˈɒbdjʊərəsɪ| — resoluteness by virtue of being unyielding and inflexible

obdurate |ˈɑːbdərət| — stubbornly persistent in wrongdoing

obedience |əˈbiːdɪəns| — the act of obeying; dutiful or submissive behavior with respect to another person

obedient |əˈbiːdɪənt| — dutifully complying with the commands or instructions of those in authority

obedientiary |əʊˌbiːdɪˈenʃəriː| — The holder of a monastic rank or office below that of superior.

obediently |əˈbiːdɪəntlɪ| — in an obedient manner

obeisance |əʊˈbiːsns| — bending the head or body or knee as a sign of reverence or submission or shame or greeting

obeli |ˈɒbɪlaɪ| — plural form of obelus

obelisk |ˈɑːbəlɪsk| — a stone pillar having a rectangular cross section tapering towards a pyramidal top

obelize |ˈɑːbəˌlaɪz| — to mark a written or printed passage with an obelus

obelus |ˈɑːbələs| — A mark (÷) used to represent division in mathematics. Also used to indicate a written or printed passage, and in ancient manuscripts to mark a word or passage as spurious or doubtful.

obese |əʊˈbiːs| — excessively fat

obeseness  — obesity

obesity |əʊˈbiːsətɪ| — more than average fatness

obey |əˈbeɪ| — be obedient to

obeyance  — obedience

obeying |əˈbeɪɪŋ| — Present participle of obey.

obeyingly  — (rare) obediently

obfuscate |ˈɑːbfʌskeɪt| — make obscure or unclear

obfuscation |ˌɑːbfəˈskeɪʃən| — confusion resulting from failure to understand

obi |ˈəʊbɪ| — (West Indies) followers of a religious system involving witchcraft and sorcery

obiter |ˈɒbɪtə| — Incidentally; in passing.

obituarist |əˈbɪtjʊərɪst| — One who writes obituaries

obituary |əʊˈbɪtʃʊerɪ| — a notice of someone's death; usually includes a short biography

object |ˈɑːbdʒekt| — a tangible and visible entity; an entity that can cast a shadow

object-lesson |ˈɒbdʒɪktˌlesn| — A lesson taught (especially to young children) using a familiar or unusual object as a focus.

object-oriented |ˌɒbdʒɪktˈɔːrɪentɪd| — (computing, programming) Using entities called objects that can process data and exchange messages with other objects.

objectification |əbˌdʒektɪfɪˈkeɪʃn| — the act of representing an abstraction as a physical thing

objectify |əbˈdʒektɪfaɪ| — make external or objective, or give reality to

objection |əbˈdʒekʃn| — the act of expressing earnest opposition or protest

objectionable |əbˈdʒekʃənəbl| — causing disapproval or protest

objective |əbˈdʒektɪv| — the goal intended to be attained (and which is believed to be attainable)

objectively |əbˈdʒektɪvlɪ| — with objectivity

objectiveness  — judgment based on observable phenomena and uninfluenced by emotions or personal prejudices

objectivism |əbˈjektəˌvɪzəm| — The state of being objective.

objectivity |ˌɑːbdʒekˈtɪvətɪ| — judgment based on observable phenomena and uninfluenced by emotions or personal prejudices

objectless |ˈɑːbdʒɪktles| — Without a purpose

objector |əbˈdʒektər| — a person who dissents from some established policy

objurgate |ˈɒbdʒəɡeɪt| — express strong disapproval of

objurgation |ˌɒbdʒəˈɡeɪʃən| — rebuking a person harshly

objurgatory |ɒbˈdʒɜːɡətərɪ| — Strongly rebuking or scolding.

oblate |aˈbleɪt| — a lay person dedicated to religious work or the religious life

oblation |əˈbleɪʃən| — the act of contributing to the funds of a church or charity

oblational |əʊˈbleɪʃənl| — Of or pertaining to oblation; oblatory

oblatory |ˈɑːblətəriː| — Of or pertaining to oblation; oblational

obligate |ˈɑːbləˌɡet| — force somebody to do something

obligation |ˌɑːblɪˈɡeɪʃn| — the social force that binds you to the courses of action demanded by that force

obligatorily |ˈɒblɪɡeɪtərəlɪ| — in an obligatory manner

obligatoriness  — The quality or state of being obligatory.

obligatory |əˈblɪɡətɔːrɪ| — required by obligation or compulsion or convention

oblige |əˈblaɪdʒ| — force somebody to do something

obliged |əˈblaɪdʒd| — under a moral obligation to do something

obligee |ˌɑːbləˈdʒiː| — (law, finance) The party owed an obligation by another party, the obligor.

obliging |əˈblaɪdʒɪŋ| — showing a cheerful willingness to do favors for others

obligingly |əˈblaɪdʒɪŋlɪ| — in accommodation

obligor |ɑːbləˈɡɔːr| — (law, finance) The party bearing a legal obligation to another party, the obligee.

oblique |əˈbliːk| — any grammatical case other than the nominative

obliquely |əˈbliːklɪ| — to, toward or at one side

obliqueness  — the property of being neither parallel nor perpendicular, but at a slanting angle

obliquity |əˈblɪkwɪtɪ| — the presentation during labor of the head of the fetus at an abnormal angle

obliterate |əˈblɪtəreɪt| — mark for deletion, rub off, or erase

obliteration |əˌblɪtəˈreɪʃn| — destruction by annihilating something

oblivion |əˈblɪvɪən| — the state of being disregarded or forgotten

oblivious |əˈblɪvɪəs| — (followed by `to' or `of') lacking conscious awareness of

obliviousness  — total forgetfulness

oblong |ˈɑːblɔːŋ| — a plane figure that deviates from a square or circle due to elongation

oblongata |ɒblɒŋˈɡɑːtə| — (anatomy) The medulla oblongata.

obloquy |ˈɑːbləkwɪ| — state of disgrace resulting from public abuse

obnoxious |əbˈnɑːkʃəs| — causing disapproval or protest

obnoxiously |əbˈnɒkʃəslɪ| — in an obnoxious manner

oboe |ˈəʊbəʊ| — a slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece

oboist |ˈəʊbəʊɪst| — a musician who plays the oboe

obscene |əbˈsiːn| — designed to incite to indecency or lust

obscenely |əbˈsiːnlɪ| — to an obscene degree

obsceneness  — Quality of being obscene.

obscenity |əbˈsenətɪ| — the trait of behaving in an obscene manner

obscurant |əbˈskjʊrənt| — Acting or tending to confound, obfuscate, or obscure.

obscurantism |ɑːbˈskjʊræntɪzəm| — a policy of opposition to enlightenment or the spread of knowledge

obscurantist |ˌɒbskjʊˈræntɪst| — a person who is deliberately vague

obscuration |ˌɑːbskjʊˈreɪʃən| — the state of being obscured

obscure |əbˈskjʊr| — make less visible or unclear

obscurity |əbˈskjʊrətɪ| — the quality of being unclear or abstruse and hard to understand

obsecration |ɑːbsɪˈkreɪʃən| — An earnest supplication made in the name of God

obsequies |ˈɑːbsəkwɪz| — (plural only) Funeral rites.

obsequious |əbˈsiːkwɪəs| — attempting to win favor from influential people by flattery

obsequiousness |əbˈsiːkwɪəsnəs| — abject or cringing submissiveness

observable |əbˈzɜːrvəbl| — capable of being seen or noticed

observably |əbˈzɜːvəblɪ| — in a noticeable manner

observance |əbˈzɜːrvəns| — the act of observing; taking a patient look

observancy  — Obsolete form of observance.

observant |əbˈzɜːrvənt| — paying close attention especially to details

observation |ˌɑːbzərˈveɪʃn| — the act of making and recording a measurement

observational |ˌɑːbzərˈveɪʃnl| — relying on observation or experiment

observatory |əbˈzɜːrvətɔːrɪ| — a building designed and equipped to observe astronomical phenomena

observe |əbˈzɜːrv| — discover or determine the existence, presence, or fact of

observed |əbˈzɜːvd| — discovered or determined by scientific observation

observer |əbˈzɜːrvər| — a person who becomes aware (of things or events) through the senses

observing |əbˈzɜːvɪŋ| — quick to notice; showing quick and keen perception

obsess |əbˈses| — haunt like a ghost; pursue

obsessed |əbˈsest| — having or showing excessive or compulsive concern with something

obsession |əbˈseʃn| — an irrational motive for performing trivial or repetitive actions, even against your will

obsessive |əbˈsesɪv| — a person who has obsessions

obsessive-compulsive  — a person with obsessive-compulsive characteristics

obsessively |əbˈsesɪvlɪ| — in a compulsive manner

obsidian |əbˈsɪdɪən| — acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces

obsolescence |ˌɑːbsəˈlesns| — the process of becoming obsolete; falling into disuse or becoming out of date

obsolescent |ˌɑːbsəˈlesnt| — becoming obsolete

obsolete |ˌɑːbsəˈliːt| — no longer in use

obstacle |ˈɑːbstəkl| — something immaterial that stands in the way and must be circumvented or surmounted

obstetric |əbˈstetrɪk| — of or relating to or used in or practicing obstetrics

obstetrical |əbˈstetrɪkəl| — of or relating to or used in or practicing obstetrics

obstetrician |ˌɑːbstəˈtrɪʃn| — a physician specializing in obstetrics

obstetrics |əbˈstetrɪks| — the branch of medicine dealing with childbirth and care of the mother

obstinacy |ˈɑːbstɪnəsɪ| — the trait of being difficult to handle or overcome

obstinate |ˈɑːbstɪnət| — persist stubbornly

obstinately |ˈɒbstɪnətlɪ| — in a stubborn unregenerate manner

obstipation |ˌɒbstɪˈpeɪʃən| — severe constipation resulting from an obstruction in the intestines

obstreperous |əbˈstrepərəs| — noisily and stubbornly defiant

obstreperously |əbˈstrepərəslɪ| — in manner that attracts attention

obstruct |əbˈstrʌkt| — hinder or prevent the progress or accomplishment of

obstructed |əbˈstrəktəd| — shut off to passage or view or hindered from action

obstructing |əbˈstrəktɪŋ| — Present participle of obstruct.

obstruction |əbˈstrʌkʃn| — any structure that makes progress difficult

obstructionism |əbˈstrʌkʃənɪzəm| — deliberate interference

obstructionist |əbˈstrəkʃənəst| — someone who systematically obstructs some action that others want to take

obstructive |əbˈstrʌktɪv| — preventing movement

obtain |əbˈteɪn| — come into possession of

obtainable |əbˈteɪnəbl| — capable of being obtained

obtained |əbˈteɪnd| — simple past tense and past participle of obtain

obtaining |əbˈteɪnɪŋ| — Present participle of obtain.

obtainment  — the act of obtaining

obtest |ɑːbˈtest| — (archaic, intransitive) To implore, beseech, plead, beg.

obtestation |ˌɒbtesˈteɪʃən| — The act of obtesting; supplication; protestation.

obtrude |əbˈtruːd| — push to thrust outward

obtruncate |əbˈtrʌŋkeɪt| — To deprive of a limb; to lop.

obtrusion |əbˈtruːʒən| — An interference or intrusion

obtrusive |əbˈtruːsɪv| — sticking out; protruding

obtrusiveness  — an unwelcome conspicuousness

obturate |ˈɑːbtəreɪt| — block passage through

obturation |ˌɒbtjʊəˈreɪʃən| — The act of stopping up, or closing, an opening.

obturator |ˈɒbtjʊəreɪtə| — a prosthesis used to close an opening (as to close an opening of the hard palate in cases of cleft palate)

obtuse |əbˈtuːs| — (of a leaf shape) rounded at the apex

obtuseness |əbˈtjuːsnəs| — the quality of being slow to understand

obtusity  — obtuseness

obverse |ˈɑːbvɜːrs| — the more conspicuous of two alternatives or cases or sides

obviate |ˈɑːbvɪeɪt| — do away with

obviation  — the act of preventing something by anticipating and disposing of it effectively

obvious |ˈɑːbvɪəs| — easily perceived by the senses or grasped by the mind

obviously |ˈɑːbvɪəslɪ| — unmistakably (`plain' is often used informally for `plainly')

obviousness |ˈɒbvɪəsnəs| — the property of being easy to see and understand