9 letters · 18 points in Scrabble
noun a violent release of energy caused by a chemical or nuclear reaction
noun the act of exploding or bursting
noun a sudden great increase
originFrom French explosion, from Latin explōsiōnis, genitive form of explōsio, from explōdo (“to drive out by clapping”), from ex- and plōdo (“to clap or strike”). For more information see explode.
Etymology from Wiktionary, CC BY-SA 3.0