Ratchet

Ratchet may refer to: Ratchet (device), a mechanical device that allows movement in only one direction
Ratchet, a tool also known as a socket wrench
Ratchet (instrument), a music instrument

In film and television: Ratchet (Transformers), a character in the film Transformers
Ratchet (Robots), a character in the film Robots
Ratchet, a character in the Widget the World Watcher television series

In games: Ratchet (Ratchet & Clank), a game character
Ratchet, a town in World of Warcraft

In other: Ratchet, a financial derivative also known as cliquet option
Ratchet, a slang term for a pocket knife

See also

Quantum stirring, ratchets, and pumping, in physics
Brownian ratchet, in physics
Muller's ratchet, in genetics
Nurse Ratched, a fictional character from One Flew Over the Cuckoo's Nest
Nurse Ratchet, a fictional character from the animated series Futurama

Translation

The word "Ratchet" occurs as such in the following languages: English, French.

Translation in Japanese: ラチェット (曖昧さ回避).