The rare daily word game sweeping the globe. Find what's hidden in plain sight.
YELLOWBACK
Definition of YELLOWBACK
noun
A species of sea catfish, Sciades parkeri, having yellow coloration on the upper part of its body.
Wiktionary · CC BY-SA
Where it comes from
From yellow + back.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
YELLOWBACK in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 137, 4 October 2026. Nobody has seen it on a board for 30 days.
First ever to find it
on Day 137, 4 October 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
YELLOWBACK starts with Y and ends with K. Sorted, its letters read ABCEKLLOWY - the shape to hunt for when the grid is scrambled. L appears more than once, including a double letter.
Words that start YELLOW
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found YELLOWBACK?
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 137 - and most players walked straight past it.
Play today's OUTLIER