From Klingon Language Institute Wiki
- A member of one of the warrior races of Star Trek, different from the Romulans, the Borg, the Cardassians or other warrior races. Worf is a Klingon. Gowron is a Klingon.
- The language of this race as revealed to humanity by linguist Marc Okrand working with Klingon informant, Maltz. The term refers to the language in its many dialects. Those who speak the language refer to it as tlhIngan Hol.