Scrabble Dictionaries supported:
  • English - US : Merriam-Webster and NWL 2020
  • English - US: NASPA Word List 2018 edition
  • English - UK : Collins official Scrabble Dictionary, digital edition 2019
  • French : L’officiel du jeu Scrabble Larousse 2019
  • Spanish : Spanish definitions and FISE 2017
  • Portuguese : Lexico 2017
  • German : Duden and JOR
  • Italian : Zanichelli 2021
  • Turkish: Tureng 2021
To change your dictionary, go to your Profile > Profile Settings > Word Dictionaries.
 
You can select multiple dictionaries in case you want to play with more than one.
 
Remember to select the one you prefer just before starting a new game!