Noun

1. A river in western thailand; a major tributary of the chao phraya
2. A sharp high-pitched resonant sound (as of a sonar echo or a bullet striking metal)

Verb

1. Hit with a pinging noise
2. Sound like a car engine that is firing too early
3. Make a short high-pitched sound
4. Contact, usually in order to remind of something
5. Send a message from one computer to another to check whether it is reachable and active