noun Date: 1801 any of several bowling pins: as, headpin , the pin that stands in the middle of a triangular arrangement of bowling pins, the chief person in a group or undertaking, 3. kingbolt , a pin connecting the two parts of a knuckle joint (as in an automobile steering linkage)
KINGPIN
Meaning of KINGPIN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012