Dictionary & Thesaurus

kingpin

1.	(noun) the most important person in a group or undertaking
	Synonyms: bigwig, top banana
	Related Words: important person, influential person, personage

2.	(noun) the front pin in the triangular arrangement of ten pins
	Synonyms: headpin
	Related Words: bowling pin, pin

3.	(noun) provides a steering joint in a motor vehicle
	Synonyms: kingbolt, swivel pin
	Related Words: bolt