crystal ball vs globe

crystal ball and globe both are nouns.

Word	Noun	Adjective	Verb	Adverb
crystal ball	Yes	No	No	No
globe	Yes	No	No	No

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

crystal ball: a glass or crystal globe used in crystal gazing by fortunetellers
globe: an object with a spherical shape

Other hypernyms of crystal ball include ball, orb.

crystal ball (noun)	globe (noun)
a glass or crystal globe used in crystal gazing by fortunetellers	a sphere on which a map (especially of the earth) is represented
	the 3rd planet from the sun; the planet we live on
	an object with a spherical shape