foul

1. To make dirty. (transitive) · to foul the face or hands with mire· She's fouled her diaper.
2. To besmirch. (transitive) · He's fouled his reputation.
3. To obstruct, block, or otherwise interfere with (something), for example by clogging (a drain, gun barrel, chimney, etc) or by being in the way of (a gunshot, etc). (intransitive, transitive) · The hair has fouled the drain.
4. To entangle. (transitive) · The kelp has fouled the prop.
5. To make a play, such as a strong contact with an opposing player in order to gain advantage, that is deemed by the referee to have contravened the rules. (transitive) · Smith fouled him hard.
6. To commit a foul. (intransitive) · Smith fouled within the first minute of the quarter.
7. To hit outside of the baselines. (transitive) · Jones fouled the ball off the facing of the upper deck.
8. To hit a ball outside of the baselines. (intransitive) · Jones fouled for strike one.

He/she/it fouls · Prétérit fouled · Participe passé fouled · Forme en -ing fouling