Is wind a common or proper noun?

The noun 'wind' is a common noun; a general Word for a moving current of air; a Word for any kind of wind.

A proper noun is the name of a specific person, place, thing, or a title; for example:

• Dr. Wind Goodfriend, Associate Professor of Experimental Psychology, Buena Vista University, Storm Lake, Iowa
• Wind Gap, PA 18091 or Wind Lake, WI 53185
• "Gone with the Wind", 1939 movie title.

The Word 'wind' is also a verb: wind, winds, winding, winded, wound.