ACT - Something done, a deed.
ATE - Simple past of eat.
CAT - Any similar animal of the family Felidae, which includes lions, tigers, bobcats, etc.
EAT - To consume (something solid or semi-solid, usually food) by putting it into the mouth and swallowing it.
HAT - A covering for the head, often in the approximate form of a cone or a cylinder closed at its top end, and sometimes having a brim and other decoration.
TEA - The dried leaves or buds of the tea plant, Camellia sinensis.
CHAT - To be engaged in informal conversation.
EACH - All; every; qualifying a singular noun, indicating all examples of the thing so named seen as individual or separate items (compare every).
HATE - To dislike intensely; to feel strong hostility towards.
HEAT - Thermal energy.
TECH - Technology.
ETCH - To cut into a surface with an acid or other corrosive substance in order to make a pattern. Best known as a technique for creating printing plates, but also used for decoration on metal, and, in modern industry, to make circuit boards.
CATCH - The act of seizing or capturing.
CHEAT - To violate rules in order to gain advantage from a situation.
TEACH - To show (someone) the way; to guide, conduct.
CACHET - A special characteristic or quality.