DictionaryfoulObstruction
verb

foul

To obstruct movement or operation by clogging or entangling.

Thick weeds foul the boat's propeller and stop it from turning.

Etymology

Foul originally describes something dirty or impure. As a verb, it covers making a mechanism unworkable through accumulated matter or entanglement that interferes with free movement.

More examples

  • Debris fouls the pump, preventing water from flowing.
  • A loose rope fouled the winch during the lift.
  • Tangled fishing line keeps fouling the reel.

Forms

foul · fouls · fouled · fouling

Similar words

clog
Emphasizes blocking a passage with accumulated material rather than entanglement.
entangle
Emphasizes twisting or catching things together, not necessarily disabling equipment.
jam
Emphasizes parts becoming stuck, without requiring clogging or entanglement.