Definition of "lexicon" in English

noun

1. The vocabulary of a language.

2. (lexicography, linguistics) A dictionary that includes or focuses on lexemes.

3. A dictionary of Classical Greek, Hebrew, Latin, or Aramaic.

4. (programming) The lexicology of a programming language. (Usually called lexical structure.)

5. (rare) Any dictionary.

6. The vocabulary used by or known to an individual. (Also called lexical knowledge.)

7. A set of vocabulary specific to a certain subject.

   • the baseball lexicon

verb

1. (transitive) To add to a lexicon.

2. (film) To shorten a soundtrack to fit a shortened version of a movie.