DIP - A lower section of a road or geological feature.
HIP - The outward-projecting parts of the pelvis and top of the femur and the overlying tissue.
ION - An atom or group of atoms bearing an electrical charge such as the sodium and chlorine atoms in a salt solution.
LIP - Either of the two fleshy protrusions around the opening of the mouth.
NOD - To incline the head up and down, as to indicate agreement.
OIL - Liquid fat.
OLD - Of an object, concept, relationship, etc., having existed for a relatively long period of time.
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.
POD - A seed case for legumes (e.g. peas, beans, peppers).
DIN - A loud noise; a cacophony or loud commotion.
NIP - A small quantity of something edible or a potable liquor.
NIL - Nothing; zero.
DON - A university professor, particularly one at Oxford or Cambridge.
PHI - The twenty-first letter of the Classical and Modern Greek, the twenty-second letter of Old and Ancient.
HOLD - Gracious; friendly; faithful; true.
IDOL - A graven image or representation of anything that is revered, or believed to convey spiritual power.
LION - A big cat, Panthera leo, native to Africa, India and formerly to much of Europe. The term may apply to the species as a whole, to individuals, or to male individuals. It also applies to related species like mountain lions.
POND - An inland body of standing water, either natural or man-made, that is smaller than a lake.
LOIN - The part of the body (of humans and quadrupeds) at each side of the backbone, between the ribs and hips.
DOLPHIN - A carnivorous aquatic mammal inhabiting mostly in the shallower seas of the continental shelves, famed for its intelligence and occasional willingness to approach humans.