1. The act of joining, or the state of being joined; union; combination; coalition; as, the junction of two armies or detachments; the junction of paths.
2. The place or point of union, meeting, or junction; specifically, the place where two or more lines of railway meet or cross. Junction plate, the switch, or movable, rails, connecting one line of track with another.
Origin: L. Junctio, fr. Jungere, junctum, to join: cf. F. Jonction. See join.