Four letter words. Come on, it's no secret that four-letter words are the most popular in Scrabble, but are you getting the most out of your tiles? fizz, fuzz, jazz, words that you need to know if you want to get ahead of your Scrabble and Words with Friends opponents! Check out our perfect guide to words with four letters: Four letter words, and take your game to the next level! Have a look at these useful lists too: Two letter words and Three letter words!