A titan is an extremely important person. Albert Einstein was a titan in the world of science.

The noun titan comes from Greek mythology, in which the Titans were a race of gods. Today, a titan is someone who is god-like, or powerful and influential in a certain field. Shakespeare was a titan of literature, Wayne Gretzky was a titan of hockey, and The Beatles were titans of music. If you are famous within the world of competitive eating, you might be referred to as a titan of hot dog-eating contests.

Definitions of titan
  1. noun
    a person of exceptional importance and reputation
    synonyms: behemoth, colossus, giant, heavyweight
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    type of:
    important person, influential person, personage
    a person whose actions and opinions strongly influence the course of events
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