rubber band vs elastic band

rubber band and elastic band both are nouns.

Word	Noun	Adjective	Verb	Adverb
rubber band	Yes	No	No	No
elastic band	Yes	No	No	No

As nouns, rubber band and elastic band are synonyms defined as:

rubber band and elastic band: a narrow band of elastic rubber used to hold things (such as papers) together

Other synonyms of rubber band include elastic.

rubber band (noun)	elastic band (noun)
a narrow band of elastic rubber used to hold things (such as papers) together	a narrow band of elastic rubber used to hold things (such as papers) together