guitar string
Refers to the strings of a guitar, typically in the context of musical instruments.
ギター弦が切れたので、新しいのを買わなければならない。
My guitar string broke, so I have to buy a new one.
このギター弦は音がいいと評判だ。
These guitar strings are reputed to sound good.
Compound of ギター (guitar, from English) and 弦 (string).