About XSolver
Thanks to the public domain word list used by Words With Friends and others, I've managed to add nearly 100,000 new words to the XSolver dictionary, bringing the total to just under 410,000 words and phrases.
The original XSolver word list was based on an old Websters dictionary, and like many dictionaries, it was missing many plurals. The new additions include both modern words that were missing, and plenty of plurals, and means XSolver now has the largest online crossword-compatible word list in the world.