noun
1.
a body or system of words and phrases used by a large community or by a people, a nation, or a group of nations
the English and French languages
Synonyms: dialect, idiom, speech, tongue, vernacular
Related Word: argot, cant, jargon, lingo, patois, slang
2.
Synonyms: terminology , cant, dictionary, jargon, lexicon, palaver, vocabulary