travelling bag vs suitcase

travelling bag and suitcase both are nouns.

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

As nouns, travelling bag and suitcase are synonyms defined as:

travelling bag and suitcase: a portable rectangular container for carrying clothes

Other synonyms of travelling bag include bag, grip, traveling bag.

travelling bag (noun)	suitcase (noun)
a portable rectangular container for carrying clothes	a portable rectangular container for carrying clothes