spec. = hour, n. 1. Obsolete.

A space of time containing sixty minutes; the twenty-fourth part of a civil day.

A specific period of time. An hour. Compare tide, n. 2. Obsolete. rare.

Often figurative or allusively, in reference to the passage of time; (sometimes) an hour's space; a strictly finite space of time.

(a) (now historical) one twelfth of the natural day or night (varying in length according to the time of the year and the latitude of the observer)…

(a) a whole hour, a full sixty minutes (chiefly English regional (Yorkshire) in the 19th and early 20th centuries, now chiefly U.S. Education); (b)…

A space of time: (a) (in old Hindu custom) 24 minutes, the 60th part of a day of 24 hours; (b) (in Anglo-Indian usage) an hour.

Of a sound, musical note: Produced by striking a blow. stricken hour (archaic): a full hour as indicated by the striking of the clock.

the 24th part of a lunar day.