Stetson vs trilby

Stetson and trilby both are nouns.

Word	Noun	Adjective	Verb	Adverb
Stetson	Yes	No	No	No
trilby	Yes	No	No	No

As nouns, Stetson and trilby are synonyms defined as:

Other synonyms of Stetson include fedora, felt hat, homburg.

Stetson (noun)	trilby (noun)
a hat made of felt with a creased crown	a hat made of felt with a creased crown