What part of speech is the word foul?

The word "foul" can be multiple parts of speech depending on how it's used:

* Adjective: Describing something unpleasant, offensive, or dirty.

* Example: "The air smelled foul."

* Noun: A violation of the rules, especially in sports.

* Example: "The referee called a foul on the player."

* Verb: To make something dirty or unclean.

* Example: "The spilled milk fouled the carpet."

So, to determine the part of speech, you need to look at how the word is used in the context of a sentence.