Vo·cab·u·la·ry n.; pl. Vocabularies
 1. 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.
 2. A sum or stock of words employed.
    His vocabulary seems to have been no larger than was necessary for the transaction of business.   --Macaulay.
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