comparison as in relation based on similarities and differences
comparison as in qualities that are comparable
"no comparison between the two books"
comparequalities that are comparable; examine and note the similarities or differences of; be comparable; consider or describe as similar, equal, or analogous; to form the comparative or superlative form on an adjective or adverb
equivalence a state of being essentially equal or equivalent; essential equality and interchangeability ; qualities that are comparable