The rare daily word game sweeping the globe. Find what's hidden in plain sight.
REEF
Definition of REEF
noun
A chain or range of rocks, sand, or coral lying at or near the surface of the water.
Wiktionary · CC BY-SA
Where it comes from
From earlier riff, from Middle English rif, from Old Norse rif (“rib, reef”), from Proto-Germanic *ribją (“rib, reef”), from Proto-Indo-European *h₁rebʰ- (“arch, ceiling, cover”). Dutch rif (“reef”), Low German riff, reff (“reef”), German Riff (“reef, ledge”) are also borrowed from Old Norse. Doublet of rib.
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.
REEF in OUTLIER
Players have found it on 14 boards so far. 36 players have found it across Outlier's history.
It first turned up on Day 27, 16 June 2026. The most recent board was Day 100, 28 August 2026. Nobody has seen it on a board for 9 days.
First found by a player on Day 27, 16 June 2026.
Built from these letters
REEF starts with R and ends with F. Sorted, its letters read EEFR - the shape to hunt for when the grid is scrambled. E appears more than once, including a double letter.
Same letters, different word
3 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start REEF
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 27
Could you have found REEF?
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 27 - and most players walked straight past it.
Play today's OUTLIER