being used
Excuse me — is this seat occupied?
busy
This work will keep me occupied all week.
oc • cur © AWL / э ' Ьэп / verb ( oc • curs , oc cur • ring , oc • curred )
( formal )
to happen
The accident occurred this morning.
occur to someone
to come into someone's mind
It occurred to me that you might like to come.
oc • cur • rence AWL / э 'Ьэгэш / noun [count]
( formal )
something that happens
Identity theft is now a very common occurrence.
.cean © / 'oujn/ noun ( GEOGRAPHY)
[ noncount ] the salt water that covers most of the surface of the earth
People were swimming in the ocean. Ocean levels are rising.
Ocean [ count ] one of the five large areas of salt water on Earth
the Pacific Ocean
o'clock / э klak / adverb
used after the numbers one to twelve for saying the time I left home at four o'clock and arrived in Los Angeles at five thirty. Grammar
Be careful! O'clock is only used with full hours. You cannot say "at five thirty o'clock."
oc • ta • gon
/ aktsgan / noun [count] ( MATH ) a shape with eight straight sides ►oc • tag • o • nal
/ ak' tregsnl / adjective an octagonal coin
Oc .to . ber © / ak'toubr/ noun
[ count, noncount ] ( abbreviation Oct. ) the tenth month of the year
oc • to • pus / ' aktspss / noun [ count ] ( plural oc • to • pus • es )
squid
an ocean animal with a soft body and eight long arms (called tentacles )
octopus
odd © ИП L / ad / adjective ( odd • e , )dd est )
strange or unusual
It's odd that he left without telling anyone. —SYNONYM strange
( MATH ) not able to be divided by two
1,3,5, and 7 are all odd numbers . —ANTONYM even
the odd one out
one that is different from all the others
"Apple," "orange," "cabbage" — which is the odd one out?
odd • ly / ' adli / adverb
in a strange or unusual way
She behaved very oddly. —SYNONYM strangely
oddsaw п / adz / noun the odds [ plural ]
used for saying how likely something is
The odds are that he'll win (= he'll probably win ) .
The odds are against us (= we will probably not succeed ) .
odds and ends ( informal )
different small things that are not important a box of odds and ends
• dor / ' oudsr / noun [ count ] ( formal )
a smell, especially a bad smell Of© / sv ; av / preposition
belonging to or connected with someone or something the back of the chair
What's the name of this mountain? the time of the American Civil War the arrival of the president
used for saying what something is or what something is made of
a piece of wood
a cup of coffee
Is this shirt made of cotton?
used for showing that someone or something is part of a group
one of the girls some of his friends
used after an amount, etc. a gallon of water
the fourth of July
used with some adjectives and verbs I'm proud of you.
This perfume smells of roses.
used for giving your opinion about someone's behavior That's very kind of you.
Off© / of ; af / preposition, adverb
down or away from something He fell off the roof.
We got off the bus. The thief ran off.
used for talking about removing something If you're hot, take your coat off.
Can you clean that paint off the carpet?
—ANTONYM on
away from a place; at a distance in space or time I must be off (= leave ) soon .
Summer is still a long way off.
joined to something and leading from it The bathroom is off the bedroom.
not connected; not working
