Top "O" Vocabulary Words Frequently Used

oak	opponent
object	opportunity
objection	oppose
objective	opposed
obligation	opposite
observation	opposition
observe	opt
observer	optimistic
obstacle	option
obtain	or
obvious	oral
obviously	orange
occasion	orbit
occasional	order
occasionally	ordinary
occupation	organ
occupy	organic
occur	organism
ocean	organization
oclock	organizational
odd	organize
odds	organized
of	orientation
off	origin
offender	original
offense	originally
offensive	other
offer	others
offering	otherwise
office	ought
officer	our
official	ours
officially	ourselves
often	out
oh	outcome
oil	outdoor
ok	outer
okay	outfit
old	outlet
oldfashioned	outline
Olympic	output
Olympics	outside
on	outsider
once	outstanding
one	oven
onethird	over
ongoing	overall
onion	overcome
online	overlook
only	overnight
onto	oversee
open	overwhelm
opening	overwhelming
openly	owe
opera	own
operate	owner
operating	ownership
operation	oxygen
operator
opinion