[chord] n [alter. of ME cord, short for accord] (1608): three or more musical tones sounded simultaneously
chord vi (14c) 1: accord
2: to play chords esp. on a stringed instrument ~ vt 1: to make chords on
2: harmonize chord n [alter. of cord] (1543) 1: cord 3a
2: a straight line segment joining and included between two points on a circle; broadly: a straight line joining two points on a curve
3: an individual emotion or disposition "struck a responsive ~"
4: either of the two outside members of a truss connected and braced by the web members
5: the straight line distance joining the leading and trailing edges of an airfoil