Source : WordNet®

shoot down
     v 1: move quickly and violently; "The car tore down the street";
          "He came charging into my office" [syn: {tear}, {shoot},
           {charge}, {buck}]
     2: shoot at and force to come down; "the enemy landed several
        of our aircraft" [syn: {down}, {land}]
     3: thwart the passage of; "kill a motion"; "he shot down the
        student's proposal" [syn: {kill}, {defeat}, {vote down}, {vote
        out}]