felt hat vs homburg

felt hat and homburg both are nouns.

Word	Noun	Adjective	Verb	Adverb
felt hat	Yes	No	No	No
homburg	Yes	No	No	No

As nouns, felt hat and homburg are synonyms defined as:

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

felt hat (noun)	homburg (noun)
a hat made of felt with a creased crown	a hat made of felt with a creased crown