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:


Princeton's WordNet

  1. zero hour(noun)

    the time set for the start of an action or operation


  1. zero hour(Noun)

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


  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 features Peggy King, 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.


Find a translation for the zero hour definition in other languages:

Select another language:

Discuss these zero hour definitions with the community:


Use the citation below to add this definition to your bibliography:


"zero hour." STANDS4 LLC, 2014. Web. 19 Sep. 2014. < hour>.

Are we missing a good definition for zero hour?

The Web's Largest Resource for

Definitions & Translations

A Member Of The STANDS4 Network

Nearby & related entries:

Alternative searches for zero hour: