bandoleer vs bandolier

bandoleer and bandolier both are nouns.

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

As nouns, bandoleer and bandolier are synonyms defined as:

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

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