Word List
The allowed list is roughly 15,000 words, acronyms, and abbreviations. It was scraped from another extensive, free to use list that was close to 200,000 entries. My version is under constant revision, because sometimes you come across things that should never be accepted for decency reasons. Other things are so obscure that you don't want it to be even considered an option while building puzzles (such as the genus of some flower that grows in one particular mountain range). Finally, that list missed many common words that make you sit back and wonder how they were missing, such as hid, she, our, mage, grew, of, and, so, etc. (and by etc., I literally mean "etc" and that the list goes on). The list tends to grow bit by bit, usually when I see a word would fit in a location and it doesn't show up as a possibility.
Regardless of the woes of said list, do not worry so much about the two and three letter combos. The periodic table of elements, all US state abbreviations, and a number of alphabet soup organizations are considered valid two letter words. After completion of the puzzle, a list of all the words in the target solution are provided. Selecting the word may give a very brief definition, especially if the word feels on the obscure side. Below is the list of words as of Dec. 12, 2024. Some words have brief definitions available if when hovering the mouse over it.