thwart, queer, spoil, scotch, foil, cross, frustrate, baffle, bilk -- (hinder or prevent (the efforts, plans, or desires) of; "What ultimately frustrated every challenger was Ruth's amazing September surge"; "foil your opponent")
cross -- (fold so as to resemble a cross; "she crossed her legs")
cross, traverse, span, sweep -- (to cover or extend over an area or time period; "Rivers traverse the valley floor", "The parking lot spans 3 acres"; "The novel spans three centuries")
cross -- (meet and pass; "the trains crossed")
cross -- (trace a line through or across; "cross your `t'")
crossbreed, cross, hybridize, hybridise, interbreed -- (breed animals or plants using parents of different races and varieties; "cross a horse and a donkey"; "Mendel tried crossbreeding"; "these species do not interbreed")