Definitions of ping:

• noun:   a sharp high-pitched resonant sound (as of a sonar echo or a bullet striking metal)
• noun:   a river in western Thailand; a major tributary of the Chao Phraya
• verb:   make a short high-pitched sound

  Example: "The bullet pinged when they struck the car"

• verb:   send a message from one computer to another to check whether it is reachable and active

  Example: "Ping your machine in the office"

• verb:   contact, usually in order to remind of something

  Example: "I'll ping my accountant--April 15 is nearing"

• verb:   hit with a pinging noise

  Example: "The bugs pinged the lamp shade"

• verb:   sound like a car engine that is firing too early

  Example: "The car pinged when I put in low-octane gasoline"

• name:  A female given name (rare: 1 in 100000 females; popularity rank in the U.S.: #3777)
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #11168)