GRE words Sam needs to work on

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Cards

obdurate impassive to feelings of humanity or pity  
obelisk square shaft with pyramid top (think Washington Memorial)  
oblique slanting; said of lines  
obsequies funeral rites  
obsequious showing servile readiness to fall in line with the wishes of others  
obstreperous boisterous  
obtrude to be pushed (or to push oneself) into undue prominence (related: obtrusive)  
obvert to turn the front of a thing toward any person or object  
occlude to absorb, as a gas by a metal; to shut in, out, off (revised)
occult existing but not immediately perceptible  
oculist one trained in treatment of the ey  
odium a feeling of extreme repugnance, or of dislike or disgust  
officious intermeddling with what is not one's concern  
olfactory or or pertaining to the sense of smell  
onerous burdensome or oppressive  
onus a burden or responsibility  
opaque impervious to light  
opprobrium the state of being scornfully reproached or accused of evil  
opulence affluence (opulent: wealthy)  
ordinal the form of a number showing place (first, second, third, etc.) ordinal numbers  
orthopedic relating to the correction or preventing of deformity  
osculate to kiss  
ossify to convert into bone  
ostentatious intended (or intending) to impress  
oust to eject  
outstrip to go beyond  

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