Percussion instrument and Vibraphone

Percussion instrument noun - A musical instrument in which the sound is produced by one object striking another.

Vibraphone and percussion instrument are semantically related. In some cases you can replace term "Vibraphone" with "Percussion instrument", this terms are similar.

Vibraphone noun - A percussion instrument similar to a xylophone but having metal bars and rotating disks in the resonators that produce a vibrato sound.

Percussion instrument and vibraphone are semantically related. You can use "Percussion instrument" instead a noun "Vibraphone".