Noun cognomen has 2 senses
- nickname, moniker, cognomen, sobriquet, soubriquet - a familiar name for a person (often a shortened version of a person's given name); "Joe's mother would not use his nickname and always called him Joseph"; "Henry's nickname was Slim"
--1 is a kind of appellation, denomination, designation, appellative
- surname, family name, cognomen, last name - the name used to identify the members of a family (as distinguished from each member's given name)
--2 is a kind of name
--2 has particulars: maiden name
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