| Category | Languages |
| Type | natural insect sounds |
Clack is the name of the language used by most sentient insectoid races. For non-insectoids, it is a language that can be understood, but not spoken. One can learn to say some of the simplest terms with their vocal cords, but never fluently.
The Dromite, the Thri-kreen, and the Auhtai are fluent in Clack.