The rare daily word game sweeping the globe. Find what's hidden in plain sight.
RAILS
Definition of RAILS
noun
plural of rail
noun
A horizontal bar extending between supports and used for support or as a barrier; a railing.
Wiktionary · CC BY-SA
Word DNA
RAILS inherits its ancestry from its root, RAIL.
Line of descent
4 recorded generations before English.
Deepest traced root
1st
of 59 source languages in OUTLIER
30.7%
of traced words share this origin (23,888)
branch · 30.7% of traced words
How it is built
Same root, RAIL · 10 relatives 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.
RAILS in OUTLIER
Players have found it on 17 boards so far. 20 players have found it across Outlier's history.
It first turned up on Day 1, 22 May 2026. The most recent board was Day 155, 22 October 2026. It was on the latest finished board.
First found by a player on Day 1, 22 May 2026.
Built from these letters
RAILS starts with R and ends with S. Sorted, its letters read AILRS - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
6 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Also seen on Day 1
Could you have found RAILS?
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 1 - and most players walked straight past it.
Play today's OUTLIER