1.NounAlternative form of constructed language (“a human language consciously devised by an individual or a small group, as opposed to having naturally evolved as a natural language”) .mw-parser-output .defdate{font-size:smaller}
"The Klingon language is a conlang created for use in the Star Trek franchise."
2.VerbTo create or work on a conlang (constructed language).
"I've been conlanging since I was nine years old.; Brithenig was conlanged with the purpose of looking how Welsh might have developed if it were a Romance language."