ION - An atom or group of atoms bearing an electrical charge such as the sodium and chlorine atoms in a salt solution.
NOT - Negates the meaning of the modified verb.
PIT - A hole in the ground.
POT - A vessel used for cooking or storing food.
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.
TOO - Likewise.
TOP - That part of an object furthest away in the opposite direction from that in which an unsupported object would fall.
NIP - A small quantity of something edible or a potable liquor.
NIT - The egg of a louse.
OPT - To choose; to select.
INTO - Going inside (of).
ONTO - Upon; on top of.
PINT - A unit of volume, equivalent to 1/8 of a gallon or 16 ounces.
TOON - A cartoon, especially an animated television show.
POINT - A discrete division of something.
PINTO - A horse with a patchy coloration that includes white.
PINOT - Any of several grape varieties grown in Europe and North America.
OPTION - One of the choices which can be made.
POTION - A small portion or dose of a liquid which is medicinal, poisonous, or magical.