Thwart - Definition
thwart
n 1: a crosspiece spreading the gunnels of a boat; used as a
seat in a rowboat [syn: thwart, cross thwart]
v 1: hinder or prevent (the efforts, plans, or desires) of;
"What ultimately frustrated every challenger was Ruth's
amazing September surge"; "foil your opponent" [syn:
thwart, queer, spoil, scotch, foil, cross,
frustrate, baffle, bilk]