(1):
(superl.) Sordid; base; groveling; as, a dirty fellow.
(2):
(v. t.) To foul; to make filthy; to soil; as, to dirty the clothes or hands.
(3):
(v. t.) To tarnish; to sully; to scandalize; - said of reputation, character, etc.
(4):
(superl.) Defiled with dirt; foul; nasty; filthy; not clean or pure; serving to defile; as, dirty hands; dirty water; a dirty white.
(5):
(superl.) Sleety; gusty; stormy; as, dirty weather.
(6):
(superl.) Sullied; clouded; - applied to color.