work hour
noun
(In plural) the part of the day (typically) spent at work; (later also) the amount of time spent at work; (in singular) an hour during which work is done.
Origin
Late 18th century; earliest use found in Acts of Parliament.
- arithmetical ratio
- arithmetician
- arithmetic logic unit
- arithmetic mean
- arithmetic progression
- arithmetic series
- arithmetic unit
- arithmetise
- arithmetize
- -arium
- Ariz.
- Arizona
- Arizonan
- Arjuna
- ark
- Ark.
- Arkansan
- Arkansas
- Arkansas River
- Arkansawyer
- Arkansian
- Arkhangelsk
- Arkie
- Ark of the Covenant
- Ark of the Testimony