silk hat vs stovepipe

silk hat and stovepipe both are nouns.

Word	Noun	Adjective	Verb	Adverb
silk hat	Yes	No	No	No
stovepipe	Yes	No	No	No

As nouns, silk hat and stovepipe are synonyms defined as:

silk hat and stovepipe: a man's hat with a tall crown; usually covered with silk or with beaver fur

Other synonyms of silk hat include beaver, dress hat, high hat, opera hat, top hat, topper.

silk hat (noun)	stovepipe (noun)
a man's hat with a tall crown; usually covered with silk or with beaver fur	chimney consisting of a metal pipe of large diameter that is used to connect a stove to a flue
	a man's hat with a tall crown; usually covered with silk or with beaver fur