IPA: /əv/
KK: /ʌv/
This word is used to show a relationship between a part and a whole, to indicate belonging, or to specify a point in time or distance.
The cover of the book is blue.
This word originates from Old English 'of', meaning 'away from' or 'from'.
Think of 'of' as indicating a relationship of separation or origin, as it originally meant 'away from'.