compare vs likeness

compare and likeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
compare	Yes	No	Yes	No
likeness	Yes	No	No	No

As nouns, likeness is a hypernym of compare; that is, likeness is a word with a broader meaning than compare:

compare: qualities that are comparable
likeness: similarity in appearance or character or nature between persons or things

Other hypernyms of compare include alikeness, similitude.

compare (noun)	likeness (noun)
qualities that are comparable	picture consisting of a graphic image of a person or thing
	similarity in appearance or character or nature between persons or things

compare (verb)	likeness (verb)
examine and note the similarities or differences of
consider or describe as similar, equal, or analogous
to form the comparative or superlative form on an adjective or adverb
be comparable