bandolier vs bandoleer

bandolier and bandoleer both are nouns.

Word	Noun	Adjective	Verb	Adverb
bandolier	Yes	No	No	No
bandoleer	Yes	No	No	No

As nouns, bandolier and bandoleer are synonyms defined as:

bandolier and bandoleer: a broad cartridge belt worn over the shoulder by soldiers

bandolier (noun)	bandoleer (noun)
a broad cartridge belt worn over the shoulder by soldiers	a broad cartridge belt worn over the shoulder by soldiers