When something — like a movie or piece of music — reaches its most important or exciting part, that's the climax. A climax is a high point.

When you're on a roller coaster and you reach the highest point, that's the climax of the ride. This word is also used often in art and entertainment. In an adventure movie, there's usually a moment near the end when there's a lot of danger, suspense, and action — a point the whole movie has been building towards. That's the climax. After a climax, tension is released and things calm down. After a climax, you probably want to say "Whew!"

Definitions of climax
  1. noun
    the highest point of anything conceived of as growing or developing or unfolding
    “the climax of the artist's career”
    synonyms: flood tide
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    type of:
    juncture, occasion
    an event that occurs at a critical time
  2. noun
    the decisive moment in a novel or play
    “the deathbed scene is the climax of the play”
    synonyms: culmination
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    type of:
    instant, minute, moment, second
    a particular point in time
  3. noun
    the most severe stage of a disease
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    type of:
    degree, level, point, stage
    a specific identifiable position in a continuum or series or especially in a process
  4. noun
    the moment of most intense pleasure in sexual intercourse
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    type of:
    the act of bringing to completion or fruition
  5. noun
    arrangement of clauses in ascending order of forcefulness
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    type of:
    rhetorical device
    a use of language that creates a literary effect (but often without regard for literal significance)
  6. verb
    end, especially to reach a final or climactic stage
    synonyms: culminate
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    crown, top
    be the culminating event
    type of:
    cease, end, finish, stop, terminate
    have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
Word Family

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