CAT - Any similar animal of the family Felidae, which includes lions, tigers, bobcats, etc.
COP - To (be forced to) take; to receive; to shoulder; to bear, especially blame or punishment for a particular instance of wrongdoing.
PAT - The sound of a light slap or tap with a soft flat object, especially of a footstep.
PAY - To give money or other compensation to in exchange for goods or services.
POT - A vessel used for cooking or storing food.
TAP - A tapering cylindrical pin or peg used to stop the vent in a cask; a spigot.
TOP - That part of an object furthest away in the opposite direction from that in which an unsupported object would fall.
TOY - An inferior graffiti artist.
COT - A symbol of the trigonometric function cotangent.
OPT - To choose; to select.
COY - Bashful, shy, retiring.
OAT - Widely cultivated cereal grass, typically Avena sativa.
CAY - A small, low island largely made of sand or coral.
ATOP - On the top of.
COAT - An outer garment covering the upper torso and arms.
COPY - The result of copying (confer original); an identical duplication.
PACT - An agreement; a compact; a covenant.
TYPO - A compositor; a typographer.
TACO - A Mexican snack food; a small tortilla with some rice, beans, cheese, diced vegetables (usually tomatoes and lettuce, as served in the United States) and salsa.
COPYCAT - One who imitates others' work without adding ingenuity.