Trousers – le pantalon
(Pronounced pan-tah-lon)
To remember that Trousers is pronounced pahn-tal-on (pantalon) in French, use the following mnemonic:
The dog wore trousers as it panted along (pantalon).

Pantalon is masculine, so it's le pantalon. Imagine the early learner trying on trousers way too big for him.

Examples of pantalon (trousers) in a sentence
Je porte mon pantalon.
(I am wearing my pants.)
Je cherche un pantalon bleu.
(I am looking for blue pants.)
Son pantalon est trop court.
(His pants are too short.)