Nouns

(n)Yankee, Yank, Northerneran American who lives in the North (especially during the American Civil War)
(n)New Englander, Yankeean American who lives in New England
(n)Yankee, Yank, Yankee-Doodlean American (especially to non-Americans)

Adjectives

(s)Yankeeused by Southerners for an inhabitant of a northern state in the United States (especially a Union soldier)