Looking up...
The indefinite article used before singular nouns beginning with a vowel or silent 'h'.
J'ai un ami à Paris.
I have a friend in Paris.
Used before singular nouns starting with vowels (a, e, i, o, u) or silent 'h'.
The number one.
Un plus un égale deux.
One plus one equals two.
Used as a numeral, often in mathematical or counting contexts.
'Un' is used with masculine nouns, while 'une' is used with feminine nouns.
Always use 'un' before singular masculine nouns starting with a vowel or silent 'h'.
From Old French 'un', from Latin 'ūnus', meaning 'one'.
In French, 'un' is used as an indefinite article before masculine singular nouns. It is also used as the numeral for one.