1. [n]  a sharp high-pitched metallic sound
2. [n]  a river in western Thailand; a major tributary of the Chao Phraya
3. [v]  hit with a pinging noise; "The bugs pinged the lamp shade"
4. [v]  make a short high-pitched sound, as of a bullet striking metal
5. [v]  of car engines, when firing too early

1. \Ping\, n. [Probably of imitative origin.]
   The sound made by a bullet in striking a solid object or in
   passing through the air.
   

2. \Ping\, v. i. [imp. & p. p. {Pinged}; p. pr. & vb. n.
   {Pinging}.]
   To make the sound called ping.
   

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