The Correct spelling is: guitar
Common misspellings of the word guitar are:
How do you spell guitar?. It is not
A musical instrument having a flat-backed rounded body that narrows in the middle, a long fretted neck, and usually six strings, played by strumming or plucking.
[French guitare, from Spanish guitarra, from Greek kitharÄ, cithara.]guitarist guiÂ·tar'ist n.