Definitions for zero hour

This page provides all possible meanings and translations of the word zero hour

Random House Webster's College Dictionary

ze′ro hour`(n.)

  1. the time set for the beginning of a military attack or operation.

    Category: Common Vocabulary, Military

  2. the time set for the beginning of any event or action.

    Category: Common Vocabulary

  3. a decisive or critical time.

    Category: Common Vocabulary

Origin of zero hour:

1915–20

Princeton's WordNet

  1. zero hour(noun)

    the time set for the start of an action or operation

Wiktionary

  1. zero hour(Noun)

    The scheduled time for the start of some event, especially a military operation; H-hour

Freebase

  1. Zero Hour!

    Zero Hour! is a 1957 drama movie directed by Hall Bartlett from a screenplay by Arthur Hailey. It stars Dana Andrews, Linda Darnell and Sterling Hayden and featureing Elroy "Crazy Legs" Hirsch, Geoffrey Toone and Jerry Paris. The film was released by Paramount Pictures. Zero Hour! was an adaptation of Hailey's 1956 Canadian Broadcasting Corporation play Flight into Danger. Hailey also co-wrote a novel with John Castle based on the same premise, titled Flight Into Danger: Runway Zero-Eight. Zero Hour! was used as the basis for the 1980 parody film Airplane!. Because Zero Hour! was owned at the time by Paramount, the makers of Airplane!, also a Paramount picture, were able to use the screenplay almost verbatim.

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