9 letters · 17 points in Scrabble
noun two words are heteronyms if they are spelled the same way but differ in pronunciation
originBy surface analysis, hetero (“different”) + -onym (“name”). Compare Ancient Greek ἑτερώνυμος (heterṓnumos). First attested in 1885 in sense 1. The coining of this term in sense 3 (as Portuguese heterónimo) is usually attributed to Fernando Pessoa.
Etymology from Wiktionary, CC BY-SA 3.0