English edit

Alternative forms edit

Etymology edit

The H stands for hour; compare D-Day.

Noun edit

H-hour (plural H-hours)

  1. (figuratively) The hour at which any major event planned for the future is set to begin, as used in United States military.

Synonyms edit

Coordinate terms edit

Descendants edit

  • Norwegian Bokmål: klokken H

Translations edit

Further reading edit