The rare daily word game sweeping the globe. Find what's hidden in plain sight.
DELTA
Definition of DELTA
noun
Alternative letter-case form of Delta of the ICAO/NATO radiotelephony alphabet.
Wiktionary · CC BY-SA
Where it comes from
From Ancient Greek δέλτα (délta), borrowed from a Phoenician word for "door", ultimately from Proto-Semitic *dalt-. Doublet of dalet.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Ancient Greek
- English
One recorded step before English.
Deepest traced root
3rd
of 59 source languages in OUTLIER
12.2%
of traced words share this origin (9,465)
branch · 12.2% of traced words
How it is built
Same root, DELTA · 3 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.
DELTA in OUTLIER
Players have found it on 30 boards so far. 40 players have found it across Outlier's history.
It first turned up on Day 7, 28 May 2026. The most recent board was Day 154, 21 October 2026. Nobody has seen it on a board for 1 day.
First found by a player on Day 7, 28 May 2026.
Built from these letters
DELTA starts with D and ends with A. Sorted, its letters read ADELT - 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 7
Could you have found DELTA?
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 7 - and most players walked straight past it.
Play today's OUTLIER