Inconsistent with the Scrabble app.
For example, the Scrabble app accepts:
Thig, seri, dogfox, towze, ozalid.... And many more. Yet, these words cannot be found on this dictionary app, nor on the non-Scrabble Mirriam Webster dictionary. Ironically, they can be found via google.
Hilofarmgal about
SCRABBLE Dictionary