(noun) a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat. Synonyms: cross thwart.
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Noun Definition 1
(verb) hinder or prevent (the efforts, plans, or desires) of. Synonyms: queer, spoil, scotch, foil, cross, frustrate, baffle, bilk. Examples: "What ultimately frustrated every challenger was ruth's amazing september surge." "Foil your opponent."