of
Translation
of
Examples
This is a cup of tea.
This is a cup of tea.
He is a friend of mine.
He is a friend of mine.
She died of a heart attack.
She died of a heart attack.
It's the third of May.
It's the third of May.
Grammar Patterns
((noun)) of ((noun)) shows possession or relation. The leg of the table is broken.
((quantity)) of ((noun)) specifies an amount. I want a piece of cake.
((verb)) of ((sth.)) indicates cause. He was afraid of the dark.
Similar Words
Synonyms: from, about, concerning (depending on context)
Etymology
From Old English 'of', meaning 'away from'. It shares its origin with 'off'.
Memory Tips
Think of 'of' as a universal connector, linking nouns to other nouns to show possession, origin, or content.