zero hour

zero hour
noun Etymology: from its being marked by the count of zero in a countdown Date: 1917 1. a. the hour at which a planned military operation is scheduled to start b. the time at which a usually significant or notable event is scheduled to take place 2. a time when a vital decision or decisive change must be made

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Zero Hour — may refer to:In gaming:* , an RTS computer game * , a third person shooter video game in the Duke Nukem series * , a game designed to train and exercise first respondersIn music:* Zero Hour (band), a progressive metal band * Zero Hour (Zero Hour… …   Wikipedia

  • Zero Hour! — Título Zero Hour! Ficha técnica Dirección Hall Bartlett Producción John C. Champion Hall Bartlett …   Wikipedia Español

  • zero hour — The time when something important is to begin is zero hour …   The small dictionary of idiomes

  • Zero Hour — ist eine nach kanadischer Idee in Britannien produzierte dokumentarische Fernsehreihe die auf dem History Channel in Kanada und in den USA und auf BBC in Großbritannien ausgestrahlt wird. Die Reihe handelt von tragischen Ereignissen, die das… …   Deutsch Wikipedia

  • zero hour — [n] vital moment appointed hour*, climax, contingency, countdown, crisis, crossroad, D day*, emergency, exigency, jumping off point*, juncture, moment of truth*, pinch, strait, target, the time*, turning point*; concepts 668,815,832 …   New thesaurus

  • zero hour — n. 1. the hour or moment at which a military attack or other important operation is to begin 2. any crucial or decisive moment …   English World dictionary

  • zero hour — n [singular] the time when a military operation or an important event is planned to begin …   Dictionary of contemporary English

  • zero hour — zero ,hour noun uncount the time at which something important has been arranged to start, especially a military attack …   Usage of the words and phrases in modern English

  • zero hour — ► NOUN ▪ the time at which a military or other operation is set to begin …   English terms dictionary

  • Zero Hour! — Infobox Film name = Zero Hour! image size = caption = Promotional film poster director = Hall Bartlett producer = John C. Champion Hall Bartlett writer = Arthur Hailey narrator = starring = Dana Andrews Linda Darnell music = Ted Dale Arthur… …   Wikipedia

  • zero hour — noun the time set for the start of an action or operation • Hypernyms: ↑hour, ↑time of day * * * noun [noncount] : the time at which an event (such as a military attack) is scheduled to begin * * * ˈzero hour [zero hour] noun …   Useful english dictionary

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