garment bag vs traveling bag

garment bag and traveling bag both are nouns.

Word	Noun	Adjective	Verb	Adverb
garment bag	Yes	No	No	No
traveling bag	Yes	No	No	No

As nouns, traveling bag is a hypernym of garment bag; that is, traveling bag is a word with a broader meaning than garment bag:

Other hypernyms of garment bag include bag, grip, suitcase, travelling bag.

garment bag (noun)	traveling bag (noun)
a suitcase that unfolds to be hung up	a portable rectangular container for carrying clothes