The noun 'fire' is a common noun, a general word for the flame, light, and heat produced by combustion; a general word for eagerness and enthusiasm; a general word for the shot from a gun or cannon; a word for any fire of any kind.A proper noun is the name or title of a specific person, place, or thing; for example, Fire Administrator, Palm Beach County Fire Rescue (Florida) or Fire Island (New York).The word 'fire' is also a verb: fire, fires, firing, fired.