lingo Definition

lingo
noun lingos

colloq:
often derog:
1. A language, especially one that is not highly thought of or that is not understood.

Example: doesn't speak the lingo
2. The specialized vocabulary used by a particular group of people or profession.

Example: medical lingo
Thesaurus: jargon, vernacular, vocabulary, argot, cant, dialect, parlance, terminology, idiom.

Etymology: 17c: from Latin lingua tongue or language.