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Barron's GRE wordlist 33

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
obsolete   outmoded; no longer in use  
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obstetrician   physician specializing in delivery of babies  
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obstinate   stubborn; hard to control or treat  
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obstreperous   boisterous; noisy  
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obtrude   push ( oneself or ideas) forward or intrude; butt in; stick out or extrude  
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obtuse   blunt; stupid  
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obviate   make unnecessary; get rid of  
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Occident   the West  
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occlude   shut; close  
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occult   mysterious; secret; supernatural  
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oculist   physician who specializes in treatment of the eyes  
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odious   hateful; vile  
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odium   detestation; hateful; disrepute  
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odoriferous   giving off an odor  
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odorous   having an odor  
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odyssey   long, eventful journey  
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offensive   attacking; insulting; distasteful  
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offhand   casual; done without prior thought  
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officious   meddlesome; excessively pushy in offering one's services  
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ogle   look at amorously; make eyes at  
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olfactory   concerning the sense of smell  
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oligarchy   government by a privileged few  
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ominous   threatening  
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omnipotent   all-powerful; One having unlimited power or authority  
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omnipresent   universally present; ubiquitous  
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omniscient   all-knowing  
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omnivorous   eating both plant and animal food; devouring everything  
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onerous   burdensome  
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onomatopoeia   formation or use of words that imitate sounds of the actions they refer to  
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onslaught   vicious assault  
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onus   burden; responsibility  
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opalescent   iridescent; lustrous  
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opaque   dark; not transparent  
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opiate   medicine to induce sleep or deaden ; something that relieve emotions or causes inaction  
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opportune   timely; well chosen  
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opportunist   individual who sacrifices principles for expediency by taking advantages of circumstances  
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opprobrium   infamy; vilification  
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optician   maker and seller of eye glasses  
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optimist   person who looks on the bright side  
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optimum   most favorable  
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optional   not compulsory  
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optometrist   one who fits glasses to remedy visual remedy  
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opulence   extreme wealth; luxuriousness; abundance  
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opus   A creative work, especially a musical composition numbered to designate the order of a composer's works  
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oracular   prophetic; uttered as if with divine authority; mysterious or ambiguous  
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orator   public speaker  
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oratorio   dramatic poem set to music  
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ordain   decree or command; grant holy orders; predestine  
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ordeal   severe trial or affliction  
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ordinance   An authoritative command or order; decree  
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ordination   ceremony conferring holy orders  
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orgy   wild, drunken revelry; unrestrained indulgence  
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orient   get one;s bearing; adjust  
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orientation   act of finding oneself in a society  
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orifice   mouth like opening; small opening  
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ornate   excessively or elaborately decorated  
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ornithologist   scientist who studies birds  
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orthodox   traditional; conservative in belief  
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orthography   correct spelling  
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oscillate   vibrate pendulumlike; waver  
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osseous   made of bone; bony  
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ossify   change or harden into bone  
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ostensible   apparent; professed; pretended  
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ostentatious   showy; pretentious; trying to attract attention  
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ostracize   exclude from public favor; ban  
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oust   expel; drive out  
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outlandish   bizarre; peculiar; unconventional  
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outmoded   no longer stylish; old fashioned  
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outskirts   fringes; out boarders  
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outspoken   Spoken without reserve; candid; blunt  
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outstrip   surpass; outdo  
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outwit   outsmart; trick  
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ovation   enthusiastic applause  
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overbearing   bossy; arrogant; decisively important  
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overt   Open and observable; not hidden, concealed, or secret: open to view  
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overweening   presumptuous; arrogant  
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