The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ULTRASOUND
Definition of ULTRASOUND
noun
Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.
Wiktionary · CC BY-SA
Where it comes from
From ultra- + sound.
Etymology via 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.
ULTRASOUND in OUTLIER
Players have found it on 8 boards so far. 11 players have found it across Outlier's history.
It first turned up on Day 18, 7 June 2026. The most recent board was Day 95, 23 August 2026. It was on the latest finished board.
First found by a player on Day 18, 7 June 2026.
Built from these letters
ULTRASOUND starts with U and ends with D. Sorted, its letters read ADLNORSTUU - the shape to hunt for when the grid is scrambled. U appears more than once.
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 ULTRAS
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found ULTRASOUND?
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 18 - and most players walked straight past it.
Play today's OUTLIER