The doctor of pharmacy degree requires completion of four years at an accredited college of pharmacy (most students applying for admission into a college of pharmacy already have an undergraduate degree.
dig1. 1  to break up, turn over, or remove earth, sand, etc., as with a shovel, spade, bulldozer, or claw; make an excavation. 2  to make one's way or work by or as by removing or turning over material: to dig through the files. 3  to break up, turn over, or loosen (earth, sand, etc.), as with a shovel, spade, or bulldozer (often followed by up).
A trench is a deep and narrow hole, or ditch, in the ground, like the kind soldiers on frontlines might dig to give themselves shelter from the enemy. A natural trench may also be a deep hole on the bottom of the ocean. The verb trench means to dig or to cut into, but you will most often hear the word as a noun, particularly relating to soldiers. The phrase trench warfare became popular around World War I, when technological advances in weapons changed the way that wars were fought.