Duopsonies is a 10 letter English word. It's valid Scrabble word worth 14 points. It's valid Words with friends word worth 16 points.
You can make 490 anagrams from letters in duopsonies (deinoopssu).
du(o)- + -opsony Greek opsōnía purchasing of food, equivalent to óps(on) viands + ōn(eîsthai) to buy + -ia -y3
14
16