| Category | Languages |
| Type | natural insect sounds |
Clack is the designation utilized by the majority of intelligent insectoid races. For non-insectoids, it is a language that can be comprehended, yet not actively spoken. One may acquire the ability to articulate some of the most rudimentary expressions through their vocal apparatus, yet never achieve fluency.
The Dromite, the Thri-kreen, and the Auhtai demonstrate exceptional fluency in Clack.