cleanest
verb
Definitions
To remove dirt from a place or object.
Example: Can you clean the windows today?
To tidy up, make a place neat.
Example: Clean your room right now!
To remove equipment from a climbing route after it was previously lead climbed.
To make things clean in general.
Example: She just likes to clean. That’s why I married her.
adjective
Definitions
(heading, physical) Free of dirt or impurities or protruberances.
(heading, behavioural) Free of immorality or criminality.
Smooth, exact, and performed well
Example: I’ll need a sharper knife to make clean cuts. a clean leap over a fence
Total; utter. (still in "clean sweep")