HOW - To what degree.
NOR - Used to introduce a further negative statement.
NOT - Negates the meaning of the modified verb.
NOW - Present; current.
OWN - To have rightful possession of (property, goods or capital); "To possess by right; to have the right of property in; to have the legal right or rightful title to." (Ref 1).
ROW - A line of objects, often regularly spaced, such as seats in a theatre, vegetable plants in a garden etc.
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).
TOW - To pull something behind one using a line or chain; to haul.
TWO - Describing a set or group with two components.
WHO - What person or people; which person or people (used in a direct or indirect question).
WON - Simple past tense and past participle of win.
HORN - A hard growth of keratin that protrudes from the top of the head of certain animals.
TORN - Past participle of tear (rip, rend, speed).
TOWN - A settlement; an area with residential districts, shops and amenities, and its own local government; especially one larger than a village and smaller than a city.
WORN - Past participle of wear.
NORTH - One of the four major compass points, specifically 0°, directed toward the North Pole, and conventionally upwards on a map.
THROW - To cause an object to move rapidly through the air.
WORTH - Having a value of; proper to be exchanged for.
THORN - A sharp protective spine of a plant.
THROWN - Past participle of throw.