duffel vs duffle bag

duffel and duffle bag both are nouns.

Word	Noun	Adjective	Verb	Adverb
duffel	Yes	No	No	No
duffle bag	Yes	No	No	No

As nouns, duffel and duffle bag are synonyms defined as:

duffel and duffle bag: a large cylindrical bag of heavy cloth; for carrying personal belongings

Other synonyms of duffel include duffel bag, duffle.

duffel (noun)	duffle bag (noun)
a coarse heavy woolen fabric	a large cylindrical bag of heavy cloth; for carrying personal belongings
a large cylindrical bag of heavy cloth; for carrying personal belongings