0 present participle of foil --
1 to prevent someone or something from being successful: --
The children then wreak havoc in the park, foiling the gangsters at every turn.
She is then instrumental in foiling the plot.
While allowing for dramatically more storage on the disc and foiling casual piracy, the format only provides limited error correction.
This set also began a tradition of foiling a select eighteen rares and inserting them into one of every seven packs.
The broadcast is believed to have been a major factor in foiling the coup.
Manoeuvres by players on the attacking team are sometimes aimed at foiling this defensive system.
Quadratic equations can also be solved using factorization (the reverse process of which is expansion, but for two linear terms is sometimes denoted foiling).
His help in foiling the plot was rewarded.