Cases of word usage

1) free from dirt (clean)

2) (a coating of) dirt on the surface of something or on the body (grime)

3) a state of confusion, dirt or disorder; a place for soldiers to have their meal (mess)

4) clean; free from any dirt that might cause disease; of, concerned with, the protection of (public) health (sanitary)

5) (a mark made by) a bit of soot, dirt etc; indecent or obscene talk, words (smut)

6) a very small sport or piece (of dirt etc); a small visible spot (speck)

7) to clear (dust, dirt etc) away (as if) with a brush or broom; to extent; (sweep)