Definithing > H-hour

H-hour

[eych-ouuh r, -ou-er] /ˈeɪtʃˌaʊər, -ˌaʊ ər/

noun
1.
the time, usually unspecified, set for the beginning of a planned attack.
noun
1.
(military) the specific hour at which any operation commences Also called zero hour

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