barrel organ vs hand organ

barrel organ and hand organ both are nouns.

Word	Noun	Adjective	Verb	Adverb
barrel organ	Yes	No	No	No
hand organ	Yes	No	No	No

As nouns, barrel organ and hand organ are synonyms defined as:

barrel organ and hand organ: a musical instrument that makes music by rotation of a cylinder studded with pegs

Other synonyms of barrel organ include grind organ.

barrel organ (noun)	hand organ (noun)
a musical instrument that makes music by rotation of a cylinder studded with pegs	a musical instrument that makes music by rotation of a cylinder studded with pegs