comparison

ot noun

1. The act of comparing or the state or process of being compared. to bring a thing into comparison with another;  there is no comparison between them
2. An evaluation of the similarities and differences of one or more things relative to some other or each-other. He made a careful comparison of the available products before buying anything.
3. With a negation, the state of being similar or alike. There really is no comparison between the performance of today's computers and those of a decade ago.
4. (grammar) The ability of adjectives and adverbs to form three degrees, as in hot, hotter, hottest.