Microsoft Ultimate Word Games

In a single Jumble game, you have to find every possible Expert Word before finishing the game. Expert words are the uncommon words that flash an "Expert Word" pop-up on screen when you find one.

Unless you're a serious pro or incredibly lucky, you will most likely not be able to unlock this on your own unless you have a four letter word and try all possible letter combinations. The best way is to just use an anagram solver such as THIS ONE and type in every possible word it finds. Do this in a quickplay session and purposely don't do the bonus Jumble, that way you don't have to worry about accidentally inputting all of the correct words before you finish all of the Expert words.

The achievement will unlock after inputting all expert words in a single game.