squeeze box vs accordion

squeeze box and accordion both are nouns.

Word	Noun	Adjective	Verb	Adverb
squeeze box	Yes	No	No	No
accordion	Yes	No	No	No

As nouns, squeeze box and accordion are synonyms defined as:

squeeze box and accordion: a portable box-shaped free-reed instrument; the reeds are made to vibrate by air from the bellows controlled by the player

squeeze box (noun)	accordion (noun)
a portable box-shaped free-reed instrument; the reeds are made to vibrate by air from the bellows controlled by the player	a portable box-shaped free-reed instrument; the reeds are made to vibrate by air from the bellows controlled by the player