1. The most important person in a group or undertaking
   - top banana, bigwig 
2. Bolt that provides a steering joint in a motor vehicle
   - kingbolt, swivel pin 
3. The front bowling pin in the triangular arrangement of ten pins
   - headpin

Derived forms: kingpins

Type of: bolt, bowling pin, important person, influential person, personage, pin

Encyclopedia: Kingpin

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