ACT - Something done, a deed.
CAP - A close-fitting head covering either without a brim or with a peak.
CAT - Any similar animal of the family Felidae, which includes lions, tigers, bobcats, etc.
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.
HAY - Grass cut and dried for use as animal fodder.
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.
TAP - A tapering cylindrical pin or peg used to stop the vent in a cask; a spigot.
APT - Suitable; appropriate; fit or fitted; suited.
THY - That belongs to thee; the possessive form of thou.
CAY - A small, low island largely made of sand or coral.
CHAT - To be engaged in informal conversation.
PACT - An agreement; a compact; a covenant.
PATH - A trail for the use of, or worn by, pedestrians.
CHAP - A man, a fellow.
ACHY - Suffering from aches, sore.
PATCH - A piece of cloth, or other suitable material, sewed or otherwise fixed upon a garment to repair or strengthen it, especially upon an old garment to cover a hole.
YACHT - A slick and light ship for making pleasure trips or racing on water, having sails but often motor-powered. At times used as a residence offshore on a dock.
PATCHY - Full of, or covered with, patches; abounding in patches.