trunks vs trousers

trunks and trousers both are nouns.

Word	Noun	Adjective	Verb	Adverb
trunks	Yes	No	No	No
trousers	Yes	No	No	No

As nouns, trousers is a hypernym of trunks; that is, trousers is a word with a broader meaning than trunks:

trunks: (used in the plural) trousers that end at or above the knee
trousers: (usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately

Other hypernyms of trunks include pair of trousers, pant.

trunks (noun)	trousers (noun)
(used in the plural) trousers that end at or above the knee	(usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately