INN - Any establishment where travellers can procure lodging, food, and drink.
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.
TIN - A malleable, ductile, metallic element, resistant to corrosion, with atomic number 50 and symbol Sn.
TON - A unit of weight (mass) equal to 2240 pounds (a long ton) or 2000 pounds (a short ton) or 1000 kilograms (a metric ton).
TOO - Likewise.
NIT - The egg of a louse.
INTO - Going inside (of).
NOON - Time of day when the sun is in its zenith; twelve o'clock in the day, midday.
ONTO - Upon; on top of.
TOON - A cartoon, especially an animated television show.
ONION - A monocotyledonous plant of genus Allium allied to garlic, used as vegetable and spice.
NOTION - Mental apprehension of whatever may be known or imagined; an idea; a conception; more properly, a general or universal conception, as distinguishable or definable by marks or notæ.