ACT - Something done, a deed.
ANT - Any of various insects in the family Formicidae in the order Hymenoptera, typically living in large colonies composed almost entirely of flightless females.
CAN - To know how to; to be able to.
CAT - Any similar animal of the family Felidae, which includes lions, tigers, bobcats, etc.
TAN - A symbol of the trigonometric function tangent.
TIN - A malleable, ductile, metallic element, resistant to corrosion, with atomic number 50 and symbol Sn.
NIT - The egg of a louse.
TIC - A local and habitual convulsive motion of certain muscles.
ANTI - Describing a torsion angle between 90° and 180°.
TACT - The sense of touch; feeling.
TINT - A slight coloring.
ATTIC - The space, often unfinished and with sloped walls, directly below the roof in the uppermost part of a house or other building, generally used for storage or habitation.
TACIT - Done or made in silence; implied, but not expressed; silent; as, tacit consent is consent by silence, or by not interposing an objection.
TITAN - Something or someone of very large stature, greatness, or godliness.
TAINT - A contamination, decay or putrefaction, especially in food.
ANTIC - Grotesque, incongruous.
INTACT - Untouched, especially by anything that harms, defiles, or the like; uninjured; whole; undefiled; left complete or entire; not damaged.