The rare daily word game sweeping the globe. Find what's hidden in plain sight.
BIROS
Definition of BIROS
noun
plural of biro
Wiktionary · CC BY-SA
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
BIROS in OUTLIER
Players have found it on 4 boards so far.
It first turned up on Day 48, 7 July 2026. The most recent board was Day 79, 7 August 2026. Nobody has seen it on a board for 23 days.
First ever to find it
on Day 48, 7 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
BIROS starts with B and ends with S. Sorted, its letters read BIORS - 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.
Words that start BIROS
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 48
Could you have found BIROS?
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 48 - and most players walked straight past it.
Play today's OUTLIER