In honor of the game's five-year anniversary, Words With Friends released statistics on its most commonly-played words.
"Qi," that elusive two-letter Q word that even more elusively does not require a U, placed first with over 1 billion plays. To put that in context, over 58 billion words have been played total in "Words With Friends."
Other popular words include the far more reasonable "it" (568 million plays over the past five years), "he" (554 million), and "re" (547 million). "Jo" puts in a strong showing with 484 million plays and "za" has 471 million, whatever those mean.