Notarikon is a word puzzle that is like a treasure hunt for hidden words. It works by taking each letter in a big word and making a new word out of the first letter, middle letter, and last letter of each word. For example, if the big word was "dog," the new word would be "d-o-g," and if the big word was "cat," the new word would be "c-a-t." This can be done with any word, and the new words can be put together to make a secret message or hidden code. Notarikon is a fun way to play with words and create puzzles for friends to solve.