ARC - A directed edge.
ARE - Second-person singular simple present tense of be.
CAN - To know how to; to be able to.
CAR - A wheeled vehicle, drawn by a horse or other animal.
EAR - The organ of hearing, consisting of the pinna, auditory canal, eardrum, malleus, incus, stapes and cochlea.
ERA - A time period of indeterminate length, generally more than one year.
RAN - Simple past of run.
ACNE - A skin condition, usually of the face, that is common in adolescents. It is characterised by red pimples, and is caused by the inflammation of sebaceous glands through bacterial infection.
CANE - The slender, flexible main stem of a plant such as bamboo, including many species in the Grass family Gramineae.
CARE - Grief, sorrow.
EARN - To gain (success, reward, recognition) through applied effort or work.
NEAR - Physically close.
RACE - A contest between people, animals, vehicles, etc. where the goal is to be the first to reach some objective. Several horses run in a horse race, and the first one to reach the finishing post wins.
ACRE - A field.
CRANE - A large bird of the order Gruiformes and the family Gruidae having long legs and a long neck which it extends when flying.
CANCER - A disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.