The act of comparing or the state or process of being compared. / An evaluation of the similarities and differences of one or more things relative to some other or each other.

plural of comparison

The compulsion to compare one’s accomplishments to another’s to determine relative importance, etc.

When compared to something else; in comparison.

An assertion that two things proposed to be compared are not alike, usually indicating that one is substantially superior to the other.

plural of degree of comparison

A person who comparison-shops.

An instance of comparison-shopping

To compare prices of something in advance before shopping for the best bargain.

The act of comparing prices of something in advance before shopping for the best bargain