n.
Pronunciation: ' ki ŋ - ˌ pin
Function: noun
Date: 1801
1 : any of several bowling pins: as a : HEADPIN b : the pin that stands in the middle of a triangular arrangement of bowling pins
2 : the chief person in a group or undertaking
3 a : KINGBOLT b : a pin connecting the two parts of a knuckle joint (as in an automobile steering linkage)