Ping (Noun) — A river in western Thailand; a major tributary of the Chao Phraya.
Ping (Noun) — A sharp high-pitched resonant sound (as of a sonar echo or a bullet striking metal).
Ping (Verb) — Hit with a pinging noise. ex. "The bugs pinged the lamp shade"
Ping (Verb) — Sound like a car engine that is firing too early. ex. "the car pinged when I put in low-octane petrol"
Ping (Verb) — Make a short high-pitched sound. ex. "the bullet pinged when they struck the car"
Ping (Verb) — Contact, usually in order to remind of something. ex. "I'll ping my accountant--April 15 is nearing"
Ping (Verb) — (computing) send a message from one computer to another to check whether it is reachable and active. ex. "ping your machine in the office"