Meaning
twenty-one
- The cardinal number following twenty and preceding twenty-two (21).
In a sentence
Mio fratello compie ventun anni domani.
My brother turns twenty-one tomorrow.
Ci sono ventuno studenti nella classe oggi.
There are twenty-one students in the class today.
Il treno parte stasera alle ventuno.
The train leaves tonight at nine p.m.
Usage notes
- Causes apocope before masculine nouns: 'ventun anni', but feminine 'ventuno pagine' (or 'ventun' optionally).
- Before nouns, compound numbers ending in -uno usually trigger singular agreement of the noun in older style, but plural is standard today: 'ventun anni'.