The rare daily word game sweeping the globe. Find what's hidden in plain sight.
COSTAE
Definition of COSTAE
noun
plural of costa
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.
COSTAE in OUTLIER
Players have found it on 11 boards so far.
It first turned up on Day 39, 28 June 2026. The most recent board was Day 148, 15 October 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 39, 28 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
COSTAE starts with C and ends with E. Sorted, its letters read ACEOST - 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.
Also seen on Day 39
Could you have found COSTAE?
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 39 - and most players walked straight past it.
Play today's OUTLIER