ARM - The portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand.
MAR - To spoil, to damage.
OAR - An implement used to propel a boat or a ship in the water, having a flat blade at one end, being rowed from the other end and being normally fastened to the vessel.
RAM - A male sheep.
RAW - Of weather: unpleasantly damp or cold.
ROW - A line of objects, often regularly spaced, such as seats in a theatre, vegetable plants in a garden etc.
WAR - Organized, large-scale, armed conflict between countries or between national, ethnic, or other sizeable groups, usually involving the engagement of military forces.
MOW - To cut something (especially grass or crops) down or knock down.
MAW - The stomach, especially of an animal.
ROAM - To wander or travel freely and with no specific destination.
ROAR - To make a loud, deep cry, especially from pain, anger, or other strong emotion.
WARM - Having a temperature slightly higher than usual, but still pleasant; a mild temperature.
WORM - A generally tubular invertebrate of the annelid phylum.
ARMOR - A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
ARROW - A projectile consisting of a shaft, a point and a tail with stabilizing fins that is shot from a bow.
MARROW - The substance inside bones which produces blood cells.