The rare daily word game sweeping the globe. Find what's hidden in plain sight.
REIN
Definition of REIN
noun
A strap or rope attached to a bridle or bit, used to control a horse, other animal or young child.
Wiktionary · CC BY-SA
Where it comes from
From Middle English rein, reyne, from Anglo-Norman reyne, resne, from Early Medieval Latin retina, ultimately from Classical Latin retineō (“hold back”), from re- + teneō (“keep, hold”). Compare modern French rêne. Displaced native Old English brīdel (“bridle, rein”), Old English wealdleþer, ġewealdleþer (“rein, bridle”, literally “control strap”), Old English sāl (“cord, rein”), Old English tiġel (“rein”), and Old English lāttēh, lāttēh (“leash, rein”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
3 recorded generations before English.
Deepest traced root
1st
of 59 source languages in OUTLIER
30.6%
of traced words share this origin (25,170)
branch · 30.6% of traced words
How it is built
Same root, REIN · 3 relatives in the game
Its etymology also names French, Old English.
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
REIN in OUTLIER
Players have found it on 20 boards so far. 20 players have found it across Outlier's history.
It first turned up on Day 29, 18 June 2026. The most recent board was Day 160, 27 October 2026. Nobody has seen it on a board for 5 days.
First found by a player on Day 29, 18 June 2026.
Built from these letters
REIN starts with R and ends with N. Sorted, its letters read EINR - 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.
Words that start REIN
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 29
Could you have found REIN?
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 29 - and most players walked straight past it.
Play today's OUTLIER