S: (v) pink (pink%2:39:03::), ping (ping%2:39:01::), knock (knock%2:39:01::) (sound like a car engine that is firing too early) "the car pinged when I put in low-octane gasoline"; "The car pinked when the ignition was too far retarded"
S: (v) ping (ping%2:39:00::) (make a short high-pitched sound) "the bullet pinged when they struck the car"
S: (v) ping (ping%2:32:01::) (contact, usually in order to remind of something) "I'll ping my accountant--April 15 is nearing"
S: (v) ping (ping%2:32:00::) (send a message from one computer to another to check whether it is reachable and active) "ping your machine in the office"