1. To die or be destroyed, especially in a violent or untimely manner: "Must then a Christ perish in torment in every age to save those who have no imagination?" (George Bernard Shaw).
2. To pass from existence; disappear gradually: "Man will go down into the pit, and all his thoughts will perish" (A.J. Balfour).
3. Chiefly British To spoil or deteriorate.
v.tr.