I just went out and bought a new cord to connect my TV and DVD player.
✗ I just went out and bought a new chord to connect my TV and DVD player.
I played a chord on my guitar.
✗ I played a cord on my guitar.
A cord is a long string or rope.
A mouse chewed through this cord.
The cord is broken because its owner has a rodent problem.
The word "chord" usually means multiple musical notes played together.
The student was practicing a F major chord.
These students were in music class.
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