Vo-căb'ū-la-ry, n.
n. [Fr. vocabulaire, Sp. & Pg. vocabulario, It. vocabolario, L. Lat. vocabularium, vocabularius. See supra.]
Sense 1. A list or collection of words arranged in alphabetical order and explained; a dictionary or lexicon, whether of a whole language, a single work or author, a branch of science, or the like.
Sense 2. Sum or stock of words employed.
His vocabulary seems to have been no larger than was necessary for the transaction of business. Macaulay.