leading light

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English[edit]

Pronunciation[edit]

  • (file)

Noun[edit]

leading light (plural leading lights)

  1. (idiomatic) An acclaimed expert, one of the foremost experts, a luminary.
    Stephen Hawking is a leading light in physics, people say he's the greatest physicist since Einstein.
  2. (nautical, navigation) A light that helps to guide vessels into a port.

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