successor vs equal

successor and equal both are nouns.

Word	Noun	Adjective	Verb	Adverb
successor	Yes	No	No	No
equal	Yes	Yes	Yes	No

As nouns, equal is a hypernym of successor; that is, equal is a word with a broader meaning than successor:

Other hypernyms of successor include compeer, match, peer.

successor (noun)	equal (noun)
a thing or person that immediately replaces something or someone	a person who is of equal standing with another in a group
a person who inherits some title or office
a person who follows next in order

successor (adjective)	equal (adjective)
	having the same quantity, value, or measure as another
	having the requisite qualities or resources to meet a task

successor (verb)	equal (verb)
	make equal, uniform, corresponding, or matching
	be identical or equivalent to
	be equal to in quality or ability