The rare daily word game sweeping the globe. Find what's hidden in plain sight.
TUFA
Definition of TUFA
noun
Calcareous lime deposited by precipitation from a body of water, such as a hot spring.
Wiktionary · CC BY-SA
Where it comes from
From Italian tufo, from Latin tōfus or tōphus. Doublet of tuff.
Etymology via Wiktionary (CC BY-SA).
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
TUFA in OUTLIER
Players have found it on 22 boards so far. 29 players have found it across Outlier's history.
It first turned up on Day 28, 17 June 2026. The most recent board was Day 110, 7 September 2026. It was on the latest finished board.
First ever to find it
on Day 28, 17 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
TUFA starts with T and ends with A. Sorted, its letters read AFTU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Also seen on Day 28
Could you have found TUFA?
OUTLIER is a daily word game. One grid, the same grid for everybody, and the words nobody else spots are the ones that pay. This word was on Day 28 - and most players walked straight past it.
Play today's OUTLIER