Music A combination of three or more pitches sounded simultaneously.
Harmony, as of color.
v.
chord·ed, chord·ing, chords
v.
intr.
To be in accord; agree.
Music To play chords on an instrument.
v.
tr.
Music To play chords on.
To harmonize.
[Alteration (influenced by chord, musical instrument string) of Middle English cord, from accord, agreement, from Old French acorde, from acorder, to agree; see accord.]
In music, the sound of three or more notes played at the same time. The history of Western music is marked by an increase in complexity of the chords composers use.