zenith

Zenith means the high point — it comes from astronomy, where it describes the highest point in an arc traveled by a star or a planet or another celestial body. The sun reaches its zenith when it is as high in the sky as it is going to go on that day.

Zenith — and its opposite, nadir — have been appropriated by non-astronomers and are used to describe high and low points in non-astronomical contexts. For example, you can say that the high school quarterback hit his zenith in high school, and it was all downhill from there. Do yourself a favor and try to delay your zenith so you'll have something to look forward to in your future!

Definitions of zenith
  1. noun
    the highest point (of something)
    synonyms: acme, apex, peak, vertex
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    types:
    crown
    the part of a hat (the vertex) that covers the crown of the head
    roof peak
    the highest point of a roof
    type of:
    extreme, extreme point, extremum
    the point located farthest from the middle of something
  2. noun
    the point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projected
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    Antonyms:
    nadir
    the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected
    type of:
    celestial point
    a point in the heavens (on the celestial sphere)
  3. noun
    the highest level or degree attainable; the highest stage of development
    synonyms: acme, elevation, height, meridian, peak, pinnacle, summit, superlative, tiptop, top
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    type of:
    degree, level, point, stage
    a specific identifiable position in a continuum or series or especially in a process
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