wrest pin
n (Instruments) (on a piano, harp, etc) a pin around which one end of a string is wound: it may be turned by means of a tuning key to alter the tension of the string. In a piano the wrest pin is embedded in the wrest plank
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
peg
(pɛg)
n., v. pegged, peg•ging,
adj. n. 1. a cylindrical or tapered pin of wood, metal, etc., driven or fitted into something as a fastening, support or stopper.
2. a notch or degree: to come down a peg.
3. an occasion, basis, or reason: a peg to hang a grievance on.
4. one of the wooden or metal pins in the neck of a musical stringed instrument that are turned to adjust the pitch of the strings.
5. Informal. a leg.
6. Informal. a hard, accurate throw, esp. in baseball.
8. Brit. an alcoholic drink, esp. a whiskey or brandy and soda.
v.t. 9. to fasten with or as if with pegs.
10. to mark with pegs.
11. to strike or pierce with or as if with a peg.
12. to keep (a price, exchange rate, etc.) at a set level.
13. Informal. to throw (a ball) forcefully.
14. Informal. to identify: to peg someone as a good prospect.
15. to base upon: The feature story was pegged on the riots.
v.i. 16. to work persistently.
adj. [1400–50; late Middle English pegge (n.), peggen (v.) < Middle Dutch]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.