A guitar is a musical instrument with a long neck and strings. When you play the guitar, you press the strings with one hand to make a note, and strum with the other hand (unless, of course, you are playing air guitar).

The section of a guitar where your fingers form a note is called the "fingerboard." An acoustic guitar has a hollow body that vibrates with warm sound when you pluck or strum the strings, and an electric guitar is solid and plugs into an amplifier that projects the sound. The word guitar comes from the Spanish guitarra, which has its roots in the Greek kithara, a lyre-like stringed instrument.

Definitions of guitar

n a stringed instrument usually having six strings; played by strumming or plucking

show 6 types...
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acoustic guitar
sound is not amplified by electrical means
bass guitar
the guitar with six strings that has the lowest pitch
cither, cithern, citole, cittern, gittern
a 16th century musical instrument resembling a guitar with a pear-shaped soundbox and wire strings
electric guitar
a guitar whose sound is amplified by electrical means
Hawaiian guitar, steel guitar
guitar whose steel strings are twanged while being pressed with a movable steel bar for a glissando effect
uke, ukulele
a small guitar having four strings
Type of:
stringed instrument
a musical instrument in which taut strings provide the source of sound

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