The term NORTH can be defined in a variety of ways. The first is NORTHWARD, which is an adverb meaning 'toward the north.' ARCTIC is an adjective referring to the northernmost region of the Earth, which is characterized by cold temperatures and snow. SEA is a noun referring to a large body of water, and POLE is a noun referring to either the North or South POLE, which are the two points on the Earth's surface that are farthest from the equator. Finally, STAR is a noun referring to the North STAR, which is a STAR located in the constellation Ursa Minor that is used as a navigational aid for sailors.