lexicon
[noun]
Synonyms: vocabulary, word-hoard, word-stock, terminology, cant, dictionary, jargon, language, palaver

[TahlilGaran] English Synonym Dictionary ▲

lex‧i‧con /ˈleksɪkən $ -kɑːn, -kən/ noun
[Date: 1600-1700; Language: Late Greek; Origin: lexikon, from lexikos 'of words', from Greek lexis 'word, speech', from legein 'to say']

1. the lexicon technical all the words and phrases used in a language or that a particular person knows

2. [countable] an alphabetical list of words with their meanings, especially on a particular subject or in a particular language:
a lexicon of geographical terms

[TahlilGaran] Dictionary of Contemporary English ▲