Dictionary definition for: Foul

1. (n) an act that violates of the rules of a sport

2. (v) hit a foul ball

3. (s) highly offensive; arousing aversion or disgust; "a disgusting smell" "distasteful language" "a loathsome disease" "the idea of eating meat is repellent to me" "revolting food" "a wicked stench"

4. (v) make impure; "The industrial wastes polluted the lake"

5. (s) offensively malodorous; "a putrid smell"

6. (v) become or cause to become obstructed; "The leaves clog our drains in the Fall" "The water pipe is backed up"

7. (s) violating accepted standards or rules; "a dirty fighter" "used foul means to gain power" "a nasty unsporting serve" "fined for unsportsmanlike behavior"

8. (v) commit a foul; break the rules

9. (a) (of a baseball) not hit between the foul lines

10. (v) spot, stain, or pollute; "The townspeople defiled the river by emptying raw sewage into it"

11. (s) (of a manuscript) defaced with changes; "foul (or dirty) copy"

12. (v) make unclean; "foul the water"

13. (s) thoroughly unpleasant; "filthy (or foul or nasty or vile) weather we''re having"

14. (v) become soiled and dirty

15. (s) characterized by obscenity; "had a filthy mouth" "foul language" "smutty jokes"

16. (s) disgustingly dirty; filled or smeared with offensive matter; "as filthy as a pigsty" "a foul pond" "a nasty pigsty of a room"

17. (s) especially of a ship''s lines etc; "with its sails afoul" "a foul anchor"