1) Cleaning 2) Cleansing 3) Cleanup 4) Digital audio 5) Scouring 6) Scrub 1) Mopping 2) Swabbing 
[audio] In digital audio editing, scrubbing is an interaction in which a user drags a cursor or playhead across a segment of a waveform to hear it. Scrubbing is a convenient way to quickly navigate an audio file, and is a common feature of modern DAWs and other audio editing software. The term comes from the early days of the recording indu...
• (p. pr. & vb. n.) of Scrub
Cleaning emission gases from a chemical reactor, generally with sprays of solutions that will absorb gases