ETYM Latin comparare to prepare, procure; com- + parare. Related to Prepare, Parade.
1. To be comparable.
2. To consider or describe as similar, equal, or analogous; SYN. liken, equate.
3. To examine and note the similarities or differences of.
4. To form the comparative or superlative form on an adjective or adverb.
To check two items, such as words, files, or numeric values, so as to determine whether they are the same or different. In a program, the outcome of a compare operation often determines which of two or more actions is taken next.