Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “of”

of

preposition  /ʌv, ɑv, əv/ us  

of preposition (POSSESSION)

used to show possession, belonging, or origin: She is a friend of mine. The color of his tie matches his suit. Have you read the novels of John Updike?

of preposition (CONTAINING)

containing or consisting of: a bag of groceries a book of short stories a forest of pine trees a bunch of grapes

of preposition (AMOUNT)

used after words or phrases expressing amount, number, or a particular unit: a drop of rain two pounds of potatoes hundreds of people

of preposition (POSITION)

used in expressions showing position: I left the book on top of my desk. I’ve never been north of Montreal.

of preposition (RESULT)

resulting from or having to do with: the joy of family the fear of failure

of preposition (RELATING TO)

about, or relating to: Speaking of Elizabeth, here she is. There’s a chapter on the use of herbs for medicinal purposes.

of preposition (CAUSED BY)

used to show the cause of something: He died of a heart attack. Penny is frightened of spiders. I’m tired of all this criticism.

of preposition (THAT IS/ARE)

that is/are: Sales tax of 7% is included in the price. She could read by the age of five.

of preposition (COMPARING)

used when comparing related things: He’s the oldest of three brothers. Of all his films, this one is my favorite.

of preposition (DONE TO)

done to or involving: the destruction of the rain forests the graduation of the class of 2001

of preposition (DISTANCE FROM)

used in expressions showing distance from something in place or time: We live within a mile of the school. She came within two seconds of beating the world record.

of preposition (TIME)

used in saying what the time is: It’s ten (minutes) of five (= ten minutes before five o’clock).

of preposition (DAYS)

used to describe a particular day: the eleventh of March the first of the month
(Definition of of from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of of?
Add Cambridge dictionaries to your browser to your website

Definitions of “of” in other dictionaries

Word of the Day

light at the end of the tunnel

signs of improvement in a situation that has been bad for a long time, or signs that a long and difficult piece of work is almost finished

Word of the Day

The language of work

by Kate Woodford,
October 15, 2014
Most of us talk about our jobs. We tell our family and friends interesting or funny things that have happened in the workplace (=room where we do our job), we describe – and sometimes complain about – our bosses and colleagues and when we meet someone for the first time, we tell

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More