0 past simple and past participle of foil --
1 to prevent someone or something from being successful: --
The lecture was concluded with an attack on the platform which was foiled by the police.
However, the technology was foiled when the claimants filled their bare fields with plastic olive trees.
Roughly one-third of 200 hijack attempts in the last ten years have been foiled.
They were foiled in their attempt to do anything under the basic treaties, so they invented a new mechanism.
Prompt and determined action by the four supervising officers foiled this attempt and the prisoners were removed to the cells.
Clearly, we receive evidence from time to time that risks are foiled by the early action that is now taken and the vigilance that exists.
Many attacks have been foiled by the courage and expertise of the security forces.
We all know that the one question can easily be foiled.
