Definition of Zero Hour in English :
Define Zero Hour in English
Zero Hour meaning in English
Meaning of Zero Hour in English
Pronunciation of Zero Hour in English
Zero Hour pronunciation in English
Pronounce Zero Hour in Englishsee synonyms of zero hour
1. zero hour
the time set for the start of an action or operation
WordNet Lexical Database for English. Princeton University. 2010.
Collins English Dictionary. Copyright © HarperCollins Publishers
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.