. . . . . "200297333"^^ . "zero"@en-us . "200288186"@en-us . . "zero in"@en-us . "00297333-v"^^ . . "zero"^^ . . "0"^^ . "0"^^ . . "adjust (as by firing under test conditions) the zero of (a gun); \"He zeroed in his rifle at 200 yards\""@en-us .