Chord or chords may refer to:
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chord in Wiktionary, the free dictionary.
- Chord (astronomy), a line crossing a foreground astronomical object during an occultation which gives an indication of the object's size and/or shape
- Canadian Hydrogen Observatory and Radio-transient Detector (CHORD), a proposed successor to the CHIME radio telescope
- Chord (aeronautics), the distance between the front and back of a wing, measured in the direction of the normal airflow. The term chord was selected due to the curved nature of the wing's surface
- Chord in truss construction – an outside member of a truss, as opposed to the inner "webbed members"
- In British railway terminology, a chord can refer to a short curve of track connecting two otherwise unconnected railway lines.
- Mouse chording, the capability to perform an action when holding multiple buttons on a computer mouse.
- Chord keyboard, a computer device allowing for input based on pressing multiple keys simultaneously