GRE Word List O(part 2)

opulence extreme wealth; luxuriousness; abundance; ADJ. opulent: possessing great wealth; abundant
opus work (esp. musical composition); Ex. magnum opus: masterpiece; CF. opera
oracular of an oracle; prophetic; uttered as if with divine authority; mysterious or ambiguous; hard to understand; N. oracle: wiser person; prophecy made by an oracle
orator public speaker
oratorio dramatic poem set to music; long musical work with singing but without acting; CF. cantata
ordain decree or command; grant holy orders; predestine; install as a minister, priest, or rabbi; N. ordainment; CF. ordination
ordeal severe trial or affliction; difficult experience; trial(test of patience or endurance); affliction
ordinance decree; authoritative order
ordination ceremony conferring holy orders; ceremony of ordaining a priest
orgy wild drunken revelry; unrestrained indulgence in an activity; Ex. orgy of shopping
orient get one’s bearings; adjust; make familiar with a situation; orientate
orientation act of finding oneself in society; orienting
orifice mouthlike opening; small opening (esp. to a cavern or passage of the body); CF. mouth
ornate excessively or elaborately decorated
ornithologist scientific student of birds; N. ornithology: scientific study of birds
orthodox traditional; (of someone) conservative in belief; adhering to an established doctrine
orthography correct spelling; CF. ortho-: straight; correct; Ex. orthodontics
oscillate vibrate pendulumlike; waver
osseous made of bone; bony
ossify change or harden into bone; become hard and unchanging in one’s ideas
ostensible apparent; appearing as such; professed(pretended); pretended; Ex. ostensible purpose of the expedition
ostentatious showy; trying to attract attention; pretentious; N. ostentation: showy display
ostracize banish from a group; exclude from public favor; ban; Ex. His friends ostracized him. N. ostracism
oust expel; drive out; force out; N. ouster: ousting
outcast one that has been excluded from a society; ADJ.
outfit clothing or equipment for a special purpose; Ex. cowboy outfit
outgoing sociable; eager to mix socially with others
outlandish bizzare; peculiar; unconventional
outlaw fugitive from the law (excluded from legal protection); V: declare (someone) to be an outlaw; deprive of the protection of the law; declare illegal; Ex. Drinking has been outlawed.
outlook point of view; view from a particular place; expectation for the future; prospect; Ex. outlook on life; Ex. pleasing outlook; Ex. weather outlook
outmoded no longer in fashion or use; no longer stylish; old-fashioned
outrage act of extreme violence or viciousness; resentful anger; V: commit an outrage on; produce anger in; ADJ. outrageous: offensive
outskirts fringes; outer borders (as of a city); Ex. outskirts of Boston
outspoken candid; blunt
outstrip outrun; surpass; outdo
outwit outsmart; defeat by behaving more cleverly
ovation enthusiastic applause
overbearing bossy; domineering and arrogant; decisively important; Ex. overbearing manner/importance; V. overbear: dominate
overblown inflated; exaggerated
oversee watch over and direct; supervise; N. oversight: unintentional failure to notice or do something; supervision
overt open to view; public; not secret; CF. covert
overthrow topple; N.
overture musical introduction to a long musical piece; first offer or proposal (to begin talks in the hope of reaching an agreement); Ex. overtures for peace
overturn turn over; capsize; topple
overweening arrogant; presumptuous
overwhelm (of water) cover completely; defeat completely by much greater force; Ex. overwhelmed by grief
overwrought nervous or excited; extremely agitated; hysterical; wrought-up; CF. wrought: made or done
ovoid egg-shaped; CF. ovum; CF. ovulate