the twenties
Deux individus, la vingtaine.
Two individuals, in their twenties.
— Victoria (2015)
La vingtaine.
In my twenties.
Tom s'est fait pas mal d'argent quand il avait la vingtaine.
Tom made quite a bit of money in his twenties.
Elle doit encore être dans la vingtaine.
She must still be in her twenties.