O (Dictionary cum Vocabulary Word List for Exams)

Oaf: awkward person
Example: [a stupid oaf]

Oaken: Made of or from oak.

Oakum: material used for filling in holes or plugging leaks, loose fiber
Example: [His fingers found what he wanted, an opening between two planks, where a leak had been freshly calked with oakum]

Obduracy: doggedness, stubbornness, refusal to change opinion
Example: [Mr. Graham recovered; but his old pride and obduracy did not come back]

Obdurate: unyielding
Example: [The President remains obdurate on the question of tax cuts]

Obeisance: deference homage
Example: [One by one the noblemen made their obeisance to the Queen]

Obelisk: monument tall column
Example: [an obelisk in the park]

Obese: fat
Example: [doctors advise the obese people to lose weight]

Obesity: Excessive fatness.

Obfuscate: muddle, bewilder, to confuse
Example: [arguments that obfuscated the main issue]

Obituary: eulogy
Example: [the obituary column in the newspaper]

Objective: goal unbiased
Example: [my objective is to help you]
English Dictionary Cum Vocabulary Word List for GMAT, SAT, GRE, GATE, TOEFL, IELTS, TOEIC, CAT, LSAT, ACT, SSC, BANK PO& Other exams

Objectivity: impartiality
Example: [true objectivity in a critic is impossible]

Objector: someone who objects to something, someone who disapproves of something, protester, dissenter
Example: [Usually, however, it is best to counteract objections by making appeals to both the heart and the mind of the objector]

Objurgate: scold to chide
Example: [she will objurgate us publicly for this offense]

Oblation: sacrifice offering
Example: [the wealthy man offered oblations to help provide food for the poor]

Obligate: To hold to the fulfillment of duty.

Obligatory: required
Example: [The medical examination was obligatory]

Oblige: compel
Example: [The law obliges companies to pay decent wages to their employees]

Oblique: indirect
Example: [He gave her an oblique glance]

Obliquity: perversity
Example: [obliquity from the ways of honesty and integrity]

Obliterate: destroy
Example: [The missile strike was devastating – the target was totally obliterated]

Oblivion: unconscious or without memory
Example: [He sought oblivion in a bottle of whisky]

Oblong: Longer than broad: applied most commonly to rectangular objects considerably elongated

Obloquy: abusive language slander
Example: [to cast obloquy on someone’s reputation]

Obnoxious: Detestable
Example: [he’s loud and obnoxious]

Obscure: unclear, vague, dim
Example: [His answers were obscure and confusing]

Obsequies: Funeral rites.

Obsequious: servile, fawning, overly submissive
Example: [He is almost embarrassingly obsequious to anyone in authority]
English Dictionary Cum Vocabulary Word List for GMAT, SAT, GRE, GATE, TOEFL, IELTS, TOEIC, CAT, LSAT, ACT, SSC, BANK PO& Other exams

Obsequy: funeral ceremony
Example: [hundreds of people paid their last respects at the obsequies]

Observance: A traditional form or customary act.

Observant: watchful
Example: [he was very observant]

Observatory: A building designed for systematic astronomical observations.

Obsessed: fixated, consumed, gripped
Example: [obsessed with career success]

Obsidian: black volcanic rock

Obsolescence: The condition or process of gradually falling into disuse.

Obsolescent: Passing out of use as a word.

Obsolete: outdated
Example: [Kerosene lamps became obsolete when electric lighting was invented]

Obstetrician: a doctor who delivers babies

Obstetrics: The branch of medical science concerned with the treatment and care of women during pregnancy.

Obstinacy: determination, stubbornness, willfulness, inflexibility, immovability
Example: [But one cannot be too much on his guard in such a case, lest his action be biased by obstinacy or an undue regard for the opinions of men. Great care must be taken not to confound obstinacy with firmness]

Obstinate: stubborn
Example: [her obstinate refusal to compromise]

Obstreperous: unruly, noisy, troublesome
Example: [obstreperous customers]

Obstruct: To fill with impediments so as to prevent passage either wholly or in part.

Obstruction: Hindrance.
English Dictionary Cum Vocabulary Word List for GMAT, SAT, GRE, GATE, TOEFL, IELTS, TOEIC, CAT, LSAT, ACT, SSC, BANK PO& Other exams