I found another source, halfway hidden, with roughly 180k English words
http://scrabutility.com/TWL06.txt (archived link)
and based on:
Tournament Word List (TWL06)
TWL - the American dictionary, based on the Official Scrabble Players' Dictionary , used in North American and Canadian tournaments.
which links this site: https://www.isc.ro/en/...
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I had the same question and found an answer. A helpful person called Lanced has done the hard work of extracting portal data from the game and provides a public API, available at https://lanched.ru/PortalGet/ ...