chord

nouns

a straight line connecting two points on a curve
is a type of (narrower)
a line traced by a point traveling in a constant direction; a line of zero curvature
"the shortest distance between two points is a straight line"
a combination of three or more notes that blend harmoniously when sounded together
is derived from
is a type of (narrower)
a notation representing the pitch and duration of a musical sound
"the singer held the note too long"

verbs

play chords on (a string instrument)
domain category
an artistic form of auditory communication incorporating instrumental or vocal tones in a structured and continuous manner
is a type of (narrower)
perform music on (a musical instrument)
"He plays the flute"; "Can you play on this old recorder?"
bring into consonance, harmony, or accord while making music or singing