How many words in 3 letters do you know?
You may think that it is easy to spell out the words in 3 letters.
However, the number of words in 3 letters is less than you expect.
Furthermore, many words are similar except for one letter difference.
For example, "ria","rib","rid","rif","rig","rim","rip"....
We may think that there should have words such as "rie", "rit".
But...you get the wrong answers.
This APP is not only a game for fun, it is also a tester, reminder for you to improve your spell skill.