ICE - Water in frozen (solid) form.
PEN - An enclosed area used to contain domesticated animals, especially sheep or cattle.
PER - For each.
PIE - A type of pastry that consists of an outer crust and a filling.
PIN - A small device, made (usually) of drawn-out steel wire with one end sharpened and the other flattened or rounded into a head, used for fastening.
RIP - A tear (in paper, etc.).
NIP - A small quantity of something edible or a potable liquor.
PIC - A picture, especially a photographic image.
REP - Short form of reputation.
IRE - Iron.
EPIC - An extended narrative poem in elevated or dignified language, celebrating the feats of a deity or demigod (heroic epic) or other legendary or traditional hero.
PIER - A raised platform built from the shore out over water, supported on piles; used to secure, or provide access to shipping; a jetty.
PINE - Any coniferous tree of the genus Pinus.
RICE - Cereal plants (Oryza sativa) of the grass family whose seeds are used as food.
RIPE - Ready for reaping or gathering; having attained perfection; mature; -- said of fruits, seeds, etc.; as, ripe grain.
REIN - A strap or rope attached to the bridle or bit, used to control a horse, animal or young child.
NICER - Comparative form of nice: more nice.
PRICE - The cost required to gain possession of something.
RIPEN - To grow ripe; to become mature, as in botany: grain, fruit, flowers, and the like; as, grapes ripen in the sun.
PRINCE - A non-royal high title of nobility, especially in France and the Holy Roman Empire.