Foul is most commonly used as an adjective to describe a bad smell. As a verb, foul usually means “make dirty or messy.” You might foul your room to the point where it smells a bit foul.
In general, foul can be used as an adjective meaning "bad." Foul luck is bad luck; a foul day is a bad day. As a verb, foul can mean "break the rules." It’s used this way in sports, like when you commit a foul on the basketball court. The phrase "foul play" can be used in the context of sports or more generally, to indicate unfair or violent behavior. Avoid confusing foul with fowl, which refers to birds, especially chickens.
1 |
adjv |
highly offensive; arousing aversion or disgust
make unclean
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2 |
adjnv |
violating accepted standards or rules
an act that violates the rules of a sport
commit a foul; break the rules
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3 |
adj |
characterized by obscenity
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4 |
adj |
(of a manuscript) defaced with changes
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5 |
adj |
especially of a ship's lines etc
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