define clean
The definition of clean is not dirty, or sober, or off of drugs, or morally pure. An example of clean is a room that has just been vacuumed and dusted.
The definition of clean is not dirty, or sober, or off of drugs, or morally pure. 1  An example of clean is a room that has just been vacuumed and dusted.  An example of clean os someone who is in Alcoholics Anonymous and who has been sober for four months.