Definition

To make something dirty or unclean, especially by polluting it.

Example

The factory's waste began to befoul the nearby river.

Tense Forms

Conversation

I heard some rumors about Jake that really befoul his reputation.

Yeah, I don't think that's fair at all; he's a good guy.

Exactly! It's frustrating how people can just spread lies and befoul someone without any proof.

Right? We should really stand up for him and set the record straight.

Synonyms & Antonyms

Root Explanation

Befoul → It is formed from the prefix "be-" (meaning to make or cause to be) and the root "foul" (from Old English "fūl", meaning dirty or unclean). The word "befoul" means to make something dirty or unclean.

Memory Tip

Think of 'making something dirty' — 'be-' means to make, and 'foul' means dirty.

Visually Confused Words