trouser

UK: /ˈtraʊzə/ US: (trou′zər)

WordReference Random House Unabridged Dictionary of American English © 2025

trou•ser  (trou′zər), adj. 

1. Clothing of or pertaining to trousers or a trouser:
   trouser cuffs; a trouser seam.

n. 

2. Clothing a leg of a pair of trousers.

• back formation from trousers 1600–10

Collins Concise English Dictionary © HarperCollins Publishers::

trouser / ˈtraʊzə/ noun

1. (modifier) of or relating to trousers: trouser buttons

verb

1. (transitive) to take (something, esp money), sometimes surreptitiously, undeservedly, or unlawfully

WordReference Random House Learner's Dictionary of American English © 2025

trou•sers /ˈtraʊzɚz/   n. [plural]

1. Clothing Sometimes, trouser. [countable] clothing for the lower part of the body, having individual leg portions:
   a pair of trousers.
   Also called pants. 

WordReference Random House Unabridged Dictionary of American English © 2025

trou•sers  (trou′zərz), n. (used with a pl. v.)

1. Clothing Sometimes, trouser. Also called pants. a usually loose-fitting outer garment for the lower part of the body, having individual leg portions that reach typically to the ankle but sometimes to any of various other points from the upper leg down. Cf. Bermuda shorts, breeches, knickers (def. 1), short (def. 37a), slacks. 
2. Clothing pantalets.

• trouse (variant of trews) + (draw)ers 1585–95

trou′ser•less, adj.