Longman Dictionary of Contemporary English homepage

foul

2 verb
     
Related topics: Baseball
foul2
1
a) [transitive] if a sports player fouls another player, they do something that is not allowed by the rules
b) DSB [intransitive and transitive] to hit a ball outside the limit of the playing area in baseball
2 also foul up [transitive] formal to make something very dirty, especially with waste:
rivers and lakes fouled almost beyond recovery by pollutants

foul up

phrasal verb
1 to do something wrong or spoil something by making mistakes [↪ foul-up]:
We can't afford to foul up this time.
foul something ↔ up
Glen completely fouled up the seating arrangements.
2

foul something ↔ up

to make something very dirty, especially with waste:
He lit a cigarette and started to foul up the air with stinging yellow smoke.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary