/wuynd"up'/ , n.
1. the conclusion of any action, activity, etc.; the end or close.
2. a final act or part.
3. Baseball. the preparatory movements of the arm before pitching a ball. Cf. stretch (def. 22).
4. Informal. a mechanical object, as a toy or wristwatch, that is driven by a spring or similar mechanism that must be wound.
5. an act or instance of winding up. Also, wind-up .
[ 1565-75; n. use of v. phrase wind up ]