9 letters · 16 points in Scrabble
noun a mutually agreed delay in the date set for the completion of a job or payment of a debt
noun act of expanding in scope; making more widely available
noun the spreading of something (a belief or practice) into new regions
originFrom Middle English extensioun, from Old French estension, from Latin extensiō, extensiōnem.
Etymology from Wiktionary, CC BY-SA 3.0