heteronym (n.)

"word having the same spelling as another but with a different sound and meaning," 1889, also "a thing's name in one language that is an exact translation of its name in another" (1885); from hetero- "other, different" + -onym "name" (from PIE root *no-men- "name"). Distinction from a homonym is that a homonym has not the same spelling. Related: Heteronymic; heteronymous.