Shoot down is a term that means to reject or oppose something. The crossword solutions for this term are FELL, ATTACK, VETO, NIX, DENY, and SLAM. FELL is a verb meaning to cause something to collapse or fail. ATTACK is a verb meaning to launch an assault against someone or something. VETO is a noun meaning the power to reject a proposal or bill. NIX is a verb meaning to reject or cancel something. DENY is a verb meaning to refuse to accept or acknowledge something. SLAM is a verb meaning to criticize harshly. REBUT is a verb meaning to refute or disprove something.