名詞 kingpin:

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

1. He went from being a small-time hood to a mafia kingpin.
   他從不成氣候的小太保慢慢混到黑手黨的頭兒。
2. He's the kingpin of the whole team.
   他是全隊的主力。

king.pin

n.（名詞）
Sports The foremost or central pin in an arrangement of bowling pins.Also called head pin
【體育運動】 主柱：滾木球戲木瓶的排列中最前面的或中心的木瓶也作 head pin
The most important person or element in an enterprise or a system.
首要人物，主要支柱：企業(yè)或系統(tǒng)中最重要的人或因素
See kingbolt
參見 kingbolt