The rare daily word game sweeping the globe. Find what's hidden in plain sight.
QUATREFOIL
Definition of QUATREFOIL
noun
A symmetrical shape that forms the overall outline of four partially-overlapping circles of the same diameter.
Wiktionary · CC BY-SA
Where it comes from
From Old French quatrefoil, from quatre (“four”) + foil (“leaf”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Old French
- English
One recorded step before English.
Deepest traced root
9th
of 58 source languages in OUTLIER
2.9%
of traced words share this origin (829)
branch · 15.4% of traced words
How it is built
Same root, QUATREFOIL · 1 relative in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
QUATREFOIL in OUTLIER
Players have found it on 7 boards so far. 21 players have found it across Outlier's history.
It first turned up on Day 40, 29 June 2026. The most recent board was Day 126, 23 September 2026. Nobody has seen it on a board for 17 days.
First ever to find it
on Day 40, 29 June 2026 - before anyone else in Outlier's history. See the Pioneers
Also on
Built from these letters
QUATREFOIL starts with Q and ends with L. Sorted, its letters read AEFILOQRTU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram. It uses Q - among the least common letters in written English.
Words that start QUATRE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 40
Could you have found QUATREFOIL?
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 40 - and most players walked straight past it.
Play today's OUTLIER