To pull down; unbuild (that which has been built or constructed); demolish: as, to destroy a building or a fortification; to destroy a city.To overthrow; lay waste; ruin; make desolate.To kill; slay; extirpate: applied to men or animals.To bring to naught; put an end to; annihilate; obliterate entirely; cause to cease, or to cease to be: as, to destroy one's happiness or peace of mind by worry.To counteract or render of no avail; take away, detract from, or vitiate the power, force, value, use, or beauty of; ruin; spoil: as, to destroy a person's influence.To refute; disprove.