camphor ball vs orb

camphor ball and orb both are nouns.

Word	Noun	Adjective	Verb	Adverb
camphor ball	Yes	No	No	No
orb	Yes	No	Yes	No

As nouns, orb is a hypernym of camphor ball; that is, orb is a word with a broader meaning than camphor ball:

camphor ball: a small sphere of camphor or naphthalene used to keep moths away from stored clothing
orb: an object with a spherical shape

Other hypernyms of camphor ball include ball, globe.

camphor ball (noun)	orb (noun)
a small sphere of camphor or naphthalene used to keep moths away from stored clothing	the ball-shaped capsule containing the vertebrate eye
	an object with a spherical shape

camphor ball (verb)	orb (verb)
	move in an orbit