What is the meaning of Guitar?

A stringed musical instrument, of European origin, usually with a fretted fingerboard and six strings, played with the fingers or a plectrum (guitar pick).

Any type of musical instrument of the lute family, characterized by a flat back, along with a neck whose upper surface is in the same plane as the soundboard, with strings along the neck and parallel to the soundboard.

To play the guitar.

to kick, to buck (of horses and mules)

guitar

alternative spelling of ghi-ta (“guitar”)

Source: wiktionary.org