8 letters · 11 points in Scrabble
noun a wilderness at the edge of a settled area of a country
noun an international boundary or the area (often fortified) immediately inside the boundary
noun an undeveloped field of study; a topic inviting research and development
originFrom Middle English frounter, from Old French fronter (whence Modern French frontière), from front.
Etymology from Wiktionary, CC BY-SA 3.0