chord

noun

1. Archaic the string of a musical instrument
2. a feeling or emotion thought of as being played on like the string of a harp: to strike a sympathetic chord
3. Aeron.
   1. an imaginary straight line extending directly through an airfoil from the leading to the trailing edge
   2. the length of such a line
4. Anat. cord (sense )
5. Engineering a principal horizontal member in a rigid framework, as of a bridge
6. Geom. a straight line segment joining any two points on an arc, curve, or circumference

noun

intransitive verb, transitive verb

1. to harmonize
2. to play chords on (a piano, guitar, etc.)