The rare daily word game sweeping the globe. Find what's hidden in plain sight.
URACIL
Definition of URACIL
noun
One of the bases of RNA, pairing with adenine.
Wiktionary · CC BY-SA
Where it comes from
From uro- + ac(etic) + -ile. Coined in 1885 by the German chemist Robert Behrend, who was attempting to synthesize derivatives of uric acid.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- German
- English
One recorded step before English.
Deepest traced root
8th
of 59 source languages in OUTLIER
3.3%
of traced words share this origin (2,592)
branch · 22.6% of traced words
How it is built
Same root, URACIL · 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.
URACIL in OUTLIER
Players have found it on 47 boards so far. 53 players have found it across Outlier's history.
It first turned up on Day 31, 20 June 2026. The most recent board was Day 148, 15 October 2026. Nobody has seen it on a board for 7 days.
First ever to find it
on Day 31, 20 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
URACIL starts with U and ends with L. Sorted, its letters read ACILRU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Also seen on Day 31
Could you have found URACIL?
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 31 - and most players walked straight past it.
Play today's OUTLIER