Gladstone bag vs travelling bag

Gladstone bag and travelling bag both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gladstone bag	Yes	No	No	No
travelling bag	Yes	No	No	No

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

Other hypernyms of Gladstone bag include bag, grip, suitcase, traveling bag.

Gladstone bag (noun)	travelling bag (noun)
a large travelling bag made of stiff leather	a portable rectangular container for carrying clothes