BARRON’S SAT (26th, 2012) The 3500 Basic Word List
Word List 33 obsolete-pacifist 63
obsolete
■ obstinate
obstreperous
obtrude
obtuse
obviate
• odious
odium
odorous
odyssey
offensive
offhand
officious
ogle
olfactory
oligarchy
■ ominous
omnipotent
omnipresent
omniscient
omnivorous
onerous
onset
onus
opalescent
■ opaque
opiate
opportune
■ opportunist
■ optimist
optimum
optional
■opulence
opus
oracular
■ orator
ordain
ordeal
ordinance
ordination
orgy
orient
orientation
• ornate
ornithology
orthodox
oscillate
ossify
ostensible
■ ostentatious
ostracize
oust
outlandish
outmoded
outskirts
outspoken
outstrip
outwit
ovation
overbearing
overt
overwrought
■ pacifist