A piece of flexible wire in which tufted fabric is twisted and which is used to clean out the stem of a tobacco pipe or other narrow tube. It can be also used for arts and crafts

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.

Any device that filters or otherwise cleans air; an air purifier.

The property of being cleanly, or habitually clean; good hygiene. / Ritual purity.

Being habitually clean, practising good hygiene. / (obsolete) Cleansing; fitted to remove moisture; dirt, etc. / (obsolete) Adroit; dexterous; artful.

In a clean way, neatly. / Not causing a mess or unnecessary damage. / Innocently; without stain. / Adroitly; dexterously

A professional laundry or dry cleaner (business). (This form is now interpreted as plural and usually spelled without an apostrophe, even in official usage, to justify the removal of the apostrophe. It was traditionally spelled cleaner's with an apostrophe because this is grammatically correct, as can be seen with forms such as go to the doctor's, which cannot be reinterpreted as plural.)

plural of cleaner

plural of pipe cleaner