(v) hinder or prevent (the efforts, plans, or desires) of, See Also: double cross, Syn. bilk, frustrate, spoil, scotch, foil, cross, baffle, queer, Example:What ultimately frustrated every challenger was Ruth's amazing September surge; foil your opponent
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
v. t. to betray or swindle (a colleague); to promise (a collaborator) one thing and to treacherously do another, to the detriment of the collaborator. Syn. -- cross, betray. [ PJC ]