GRE words Sam needs to work on
                            Popularity (by total correct streak): 123
                            Popularity (by number of users): 1
                        
| 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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