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English definition of “of”

of

preposition (AMOUNT)    weak /əv/ strong /ɒv/ US  /ɑːv/
A1 used after words or phrases expressing amount , number , or a particular unit : a kilo of apples loads of food hundreds of people most of them none of them both of us a third of all people a speck of dust a drop of rain General words for size and amount Grammar:OfOf is a preposition.
(Definition of of preposition (AMOUNT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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