COD - A bag.
CON - To study, especially in order to gain knowledge of.
DOC - A doctor.
ION - An atom or group of atoms bearing an electrical charge such as the sodium and chlorine atoms in a salt solution.
NOD - To incline the head up and down, as to indicate agreement.
ROD - A straight, round stick, shaft, bar, cane, or staff.
DIN - A loud noise; a cacophony or loud commotion.
DON - A university professor, particularly one at Oxford or Cambridge.
COIN - A piece of currency, usually metallic and in the shape of a disc, but sometimes polygonal, or with a hole in the middle.
CORD - A long, thin, flexible length of twisted yarns (strands) of fiber.
CORN - A cereal plant grown for its grain, specifically the main such plant grown in a given region, such as oats in parts of Scotland and Ireland, wheat or barley in England and Wales, and maize or sweetcorn in the Americas.
ICON - An image, symbol, picture, or other representation usually as an object of religious devotion.
IRON - A common, inexpensive metal, often black in color, that rusts, is attracted by magnets, and is used in making steel.
NORDIC - Of or relating to cross-country skiing (Compare alpine).