equivalence vs comparison

equivalence and comparison both are nouns.

Word	Noun	Adjective	Verb	Adverb
equivalence	Yes	No	No	No
comparison	Yes	No	No	No

As nouns, equivalence and comparison are synonyms defined as:

Other synonyms of equivalence include comparability, compare.

equivalence (noun)	comparison (noun)
qualities that are comparable	the act of examining resemblances
essential equality and interchangeability	qualities that are comparable
a state of being essentially equal or equivalent; equally balanced	relation based on similarities and differences