A list or collection of words arranged in alphabetical order and explained; a dictionary or lexicon, either of a whole language, a single work or author, a branch of science, or the like; a word-book.
- All the words of a language.
- The sum of words used by, understood by, or at the command of a particular person or group.
- A list of words and often phrases, usually arranged alphabetically and defined or translated; a lexicon or glossary.
- A supply of expressive means; a repertoire of communication: a dancer's vocabulary of movement.