Heavyweight

/ˈhɛviˌweɪt/

Synonyms

  • giant
  • behemoth
  • colossus
  • luminary
  • mover and shaker

Slang Meanings

A dominant figure in a group or industry.
He's a real heavyweight in tech circles.
Someone who is exceptionally skilled or knowledgeable.
She's a heavyweight when it comes to legal matters.