swimming trunks
US /ˈswɪm.ɪŋ ˌtrʌŋks/
UK /ˈswɪm.ɪŋ ˌtrʌŋks/

1.
maillot de bain, caleçon de bain
a pair of shorts worn by men for swimming
:
•
He forgot his swimming trunks and had to buy a new pair.
Il a oublié son maillot de bain et a dû en acheter un nouveau.
•
The lifeguard was wearing bright red swimming trunks.
Le sauveteur portait un maillot de bain rouge vif.