<p><strong>Verb:</strong></p><ul><li>(used without object) to produce a sharp sound like that of a bullet striking a sheet of metal.</li></ul><p><strong>Noun:</strong></p><ul><li>a pinging sound.</li><li>an infrasonic or ultrasonic sound wave created by sonar in echolocation.</li><li>an acoustic signal transmitted to indicate a location: Rescue crews were able to follow the ping and locate the flight recorder.</li><li>Computers: an echo-request and echo-reply protocol that tests a connection online or in a network by sending a packet to a host IP address and measuring the round-trip speed of data transfer.</li><li>one of the possible sounds made by an electronic or mobile device to signal the receipt of data, as a phone or text message.</li></ul>