The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PROOF
Definition of PROOF
noun
An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.
Wiktionary · CC BY-SA
Where it comes from
From Middle English proof, from Old French prove, from Late Latin proba (“a proof”), from Latin probō (“to prove”); see prove; compare also the doublet probe.
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.
PROOF in OUTLIER
Players have found it on 14 boards so far. 16 players have found it across Outlier's history.
It first turned up on Day 22, 11 June 2026. The most recent board was Day 114, 11 September 2026. Nobody has seen it on a board for 6 days.
First ever to find it
on Day 22, 11 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
PROOF starts with P and ends with F. Sorted, its letters read FOOPR - the shape to hunt for when the grid is scrambled. O appears more than once, including a double letter.
Words that start PROOF
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 22
Could you have found PROOF?
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 22 - and most players walked straight past it.
Play today's OUTLIER