definition of
[foul]

[1] #1 foul v. hit a foul ball. wn

[2] #2 foul s. [fetid, foetid, foul-smelling, funky, noisome, smelly, stinking, ill-scented] offensively malodorous; "a foul odor"; "the kitchen smelled really funky". wn

[3] #3 foul v. [pollute, contaminate] make impure; "The industrial wastes polluted the lake". wn

[4] #4 foul s. [cheating, dirty, unsporting, unsportsmanlike] violating accepted standards or rules; "a dirty fighter"; "used foul means to gain power"; "a nasty unsporting serve"; "fined for unsportsmanlike behavior". wn

[5] #5 foul n. an act that violates the rules of a sport. wn