GIN - A colourless non-aged alcoholic liquor made by distilling fermented grains such as barley, corn, oats or rye with juniper berries; the base for many cocktails.
PIG - Any of several mammals of the genus Sus, having cloven hooves, bristles and a nose adapted for digging; especially the domesticated farm animal Sus scrofa.
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.
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.
WIG - A head of real or synthetic hair worn on the head to disguise baldness; for cultural or religious reasons; for fashion; or by actors to help them better resemble the character they are portraying.
WIT - Sanity.
NIP - A small quantity of something edible or a potable liquor.
NIT - The egg of a louse.
GIT - A contemptible person.
PING - A high-pitched, short and somewhat sharp sound.
PINT - A unit of volume, equivalent to 1/8 of a gallon or 16 ounces.
TWIG - A small thin branch of a tree or bush.
TWIN - Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling.
WING - An appendage of an animal's (bird, bat, insect) body that enables it to fly.
WIPING - Present participle of wipe.
WINGTIP - The extreme tip of the wing of an aircraft or bird.