What is the meaning of the word "dirty"?

Definitions:

(of behavior or especially language) characterized by obscenity or indecency adjective
- dirty words
a manuscript defaced with changes adjective
- The first draft came back dirty.
contaminated with infecting organisms adjective
- dirty wounds
expressing or revealing hostility or dislike adjective
- dirty looks
obtained illegally or by improper means adjective
- dirty money
of color, discolored by impurities adjective
- The dirty walls needed to be repainted.
soiled or likely to soil with dirt or grime adjective
- dirty unswept sidewalks
unethical or dishonest adjective
- dirty police officers
unpleasantly stormy adjective
- there's dirty weather in the offing
violating accepted standards or rules adjective
- a dirty fighter