11 letters · 21 points in Scrabble
noun a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specia
originFrom Ancient Greek κύκλος (kúklos, “circle”) + παιδεία (paideía, “child-rearing, education”). See cycle, and compare encyclopedia.
Etymology from Wiktionary, CC BY-SA 3.0