(historical, obsolete) A unit of computing power equal to 1000 girl-hours.

(historical, obsolete) A unit of computing power in the context of 1940s–1970s technology equal to one female worker working for one hour, for example, writing code or entering data to punch cards.

plural of kilogirl-hour

plural of girl-hour

Thirty minutes.

A particularly solemn celebration in the Eastern Orthodox Church, occurring thrice a year: on the Eve of the Nativity, the Eve of Theophany, and Great Friday.

plural of hour of need

(idiomatic) the time when help is most needed

plural of engine hour

An hour of operation of an engine.