- vo|cab|u|lar|y [ vou`kæbjə,leri ] noun *1. ) count or uncount all the words that a person knows:a limited vocabulary: Her grammar isn't bad, but she has a limited vocabulary.a wide vocabulary (=knowledge of a large number of words): He has a wide vocabulary and loves crosswords.expand your vocabulary (=learn new words): An average child will quickly expand his or her vocabulary.a ) count or uncount all the words in a particular language:Technical developments give us a lot of new vocabulary.enter the vocabulary: The word think tank had entered the vocabulary by the 1960s.b ) the words used for talking about a particular subject:technical/specialized vocabulary: Try to avoid using too much technical vocabulary.c ) all the words used or produced by a computer program, game, or talking toy:The program has a vocabulary of 2,500 words.2. ) count a list of words and their meanings, especially in a book for learning a foreign languagesomething is not in/part of someone's vocabularyused for saying that someone will not accept a particular idea or possibility:The word failure was simply not part of her vocabulary.
Usage of the words and phrases in modern English. 2013.