Half-hourly :: Half-hourly (a.) Done or happening at intervals of half an hour.
Hour :: Hour (n.) The twenty-fourth part of a day; sixty minutes.
Hour :: Hour (n.) The time of the day, as expressed in hours and minutes, and indicated by a timepiece; as, what is the hour? At what hour shall we meet?.
Hour :: Hour (n.) Fixed or appointed time; conjuncture; a particular time or occasion; as, the hour of greatest peril; the man for the hour..
Hour :: Hour (n.) Certain prayers to be repeated at stated times of the day, as matins and vespers..
Hourglass :: Hourglass (n.) An instrument for measuring time, especially the interval of an hour. It consists of a glass vessel having two compartments, from the uppermost of which a quantity of sand, water, or mercury occupies an hour in running through a small aperture unto the lower..
Houri :: Houri (n.) A nymph of paradise; -- so called by the Mohammedans.