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  1. ze·nith
    IPA[ˈzēnəTH]
  2. noun

    • 1. the time at which something is most powerful or successful:

      under Justinian, the Byzantine Empire reached its zenith of influence
    • 2. the point in the sky or celestial sphere directly above an observer.

    • 3. the highest point reached by a celestial or other object:

      the sun was well past the zenith the missile reached its zenith and fell
  3. Variation

    • n.: noun: zenith, plural noun: zeniths

    • noun

      the time at which something is most powerful or successful:

      the point in the sky or celestial sphere directly above an observer.

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