Vocabulary means a range of words or phrases of a particular language, technical field or system of communication. It also refers to all the words known or used by a person or group. The noun comes from the Latin word "vocabulum," meaning "a collection of words."
Vocabulary also means a collection of signs, symbols and qualities that constitute a code of communication, or words related to a particular subject. In art, the term refers to specific forms characteristic to an artistic style or architecture.
Words of the same vocabulary set often appear as an alphabetical list and may include definitions and translations.