The word "trousers" in French is spelled "pantalon."
trousers Or if you mean what do they call the things you wear under your trousers etc then they call them under pants
Trousers = un pantalon
(les) pantalons.
pantalon is a French word. It means 'trousers'.
a pair of trousers
le pantalon
Scottish trousers are typically called "kilts." Kilts are traditional Scottish attire that consist of a knee-length skirt-like garment with pleats at the back, often worn during formal occasions or traditional events.
pantalon d'école
un pantalon noir
des pantalons rouges
Flyer. Fly (US)