denotation
1. [ noun ] the act of indicating or pointing out by name
Synonyms: indicating indication
Related terms: naming denote
2. [ noun ] the most direct or specific meaning of a word or expression; the class of objects that an expression refers to
Synonyms: reference extension
Examples:

"the extension of `satellite of Mars' is the set containing only Demos and Phobos"

Related terms: meaning denote
Similar spelling:   denotative
  denudation
  denotatum
  dentition