Any of those days of a week on which work is done. The official working days in many countries are Monday to Friday (even though many people work on weekends).

(metallurgy) Any of several plastic deformations of metal (or other material) at relatively low temperatures.

Of or pertaining to the relationship between one's work life and personal life.

(idiomatic) To work slowly by strictly following all work rules, usually in a work-to-rule job action, as part of unionized labor protest.

Alternative spelling of work-to-rule

A labor protest in which employees do only the minimum work required by the rules of a workplace, following safety or other regulations to the letter in order to cause a slowdown.

Of or pertaining to such a protest.

A work that can be considered to be of practical use, such as software, encyclopedias, dictionaries and textbooks; it has no point of view and is non-fiction.

(Britain) The days of the week that are usually worked on, i.e. Monday to Friday.

The mechanisms that function internally to a system and are not outwardly visible