(Commonwealth of Nations) New management imposes radical changes, but those with prior experience have more knowledge.

A domestic or industrial mobile machine for cleaning floors and similar surfaces that draws dust and other particles into a container (a cyclonic type bin, or a filter bag) by the suction created by an electric motor driving a fan.

A room or environment that is controlled in such a way as to minimize airborne particulate matter, typically for the purpose of fabricating sensitive electronic or other devices.

(chiefly computing) To copy (a design) by reverse engineering and then recreating it without infringing any copyrights.

(transitive) To free from dirt; to clean, to purify. / (transitive) To spiritually purify; to free from guilt or sin; to purge.

An act of cleansing; a purification.

A person whose job is to clean windows. / A product, such as Windex, used to clean windows.

The act of cleaning or tidying something. / (baseball) Fourth in the batting order; a cleanup hitter.

Misspelling of clean up.

The mass expulsion or killing of people belonging to one ethnic group by those of another.