NAP - A short period of sleep, especially one during the day.
PAN - A wide, flat receptacle used around the house, especially for cooking.
PAT - The sound of a light slap or tap with a soft flat object, especially of a footstep.
PIN - A small device, made (usually) of drawn-out steel wire with one end sharpened and the other flattened or rounded into a head, used for fastening.
PIT - A hole in the ground.
TAP - A tapering cylindrical pin or peg used to stop the vent in a cask; a spigot.
TIN - A malleable, ductile, metallic element, resistant to corrosion, with atomic number 50 and symbol Sn.
TIP - A particular arena or sphere of interest; a front.
APT - Suitable; appropriate; fit or fitted; suited.
NIP - A small quantity of something edible or a potable liquor.
NIT - The egg of a louse.
PAIN - An ache or bodily suffering, or an instance of this; an unpleasant sensation, resulting from a derangement of functions, disease, or injury by violence; hurt.
PINT - A unit of volume, equivalent to 1/8 of a gallon or 16 ounces.
ANTI - Describing a torsion angle between 90° and 180°.
PANT - A quick breathing; a catching of the breath; a gasp.
PITA - A flat bread pouch used for making sandwiches such as gyros or falafels.
PAINT - A substance that is applied as a liquid or paste, and dries into a solid coating that protects or adds color/colour to an object or surface to which it has been applied.
PATINA - A paten, flat type of dish.