la trentina

about thirty, around thirty, one’s thirties

t r e n ˈt i . n a
trent thirty + ina feminine singular
noun · feminine Rare #40,175
about thirty, around thirty Used with a noun or pronoun to indicate an approximate quantity.
IT: Ci vorrà una trentina di minuti.
EN: It’ll take about thirty minutes.
one’s thirties Used in the expression essere sulla trentina, meaning to be in one’s thirties.
IT: Mio fratello è sulla trentina.
EN: My brother is in his thirties.

Ancora una trentina di chilometri, penso?

Another thirty kilometers or so, I think?

— Il ritorno (2003)

Tom e Mary sono entrambi sulla trentina.

Tom and Mary are both in their thirties.

Io ho una trentina di quelli.

I have about thirty of those.

Io ho una trentina di quelle.

I have about thirty of those.

Ne ha una trentina.

He has about thirty of them.

— L'attimo fuggente (1989)