English-Arabic collaborative dictionary: words and phrases with their translation or definition added by users

oak oar oasis oath oatmeal
oatmeal oats obedient obese obey
obituary object objection objective oblong
obnoxious oboe obscene observant observatory
observe observer obsessed obsession obsolete
obstacle obstinate obstruct obtain obvious
obviously occasion occasional occasionally occupation
occupation occupy occur occurrence ocean
Oceania October octopus odd odd
odd odometer odor odour of
of of of major proportions off off
off season offence offend offense offensive
offer offer office office hours office supply store
officer official off-licence off-peak off-season
off-season offside often oil oil
oil refinery oil rig oil slick oil was struck at oil well
ointment OK! OK! okay okay!
old old old-age pensioner old-fashioned olive
olive olive oil olive tree Oman omelet
omelette on on on behalf of On Friday
On Friday thirty first... On Monday On Saturday On Saturdays On Sunday
on the contrary on the dot On Thursday on time On Tuesday
On Wednesday once one one one-day round-trip ticket
one-off one's oneself one-way ticket one-way ticket
one-way ticket onion online online onlooker
only only only only time will tell onto
onto open open open opening hours
opera operate operate operating room operating theatre
OPERATION operation operation operation theater (OT) operational guidelines
operator ophthalmology opinion opinion poll opponent
opportunity oppose opposed opposing opposite
opposite opposite opposite opposition opt out
optician optimism optimist optimistic option
optional or or what have you oral oral
orange orange orange juice orbital septum orchard
orchestra orchid ordeal order order
order form ordinary oregano organ organ
organic organism organization organize orgasm
Orient oriental origin original originally
ornament orphan ostrich other otherwise

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