I always wanted to learn words with ain interesting game. This game is a combination of the famous 2048 game and synonyms of more than 1000 word groups. Word enthusiasts probably find this game interesting. I hope you enjoy it and review words you learned.
Wordnet License:
https://wordnet.princeton.edu/wordnet/license/
NGSL Word List:
http://www.newgeneralservicelist.org/