The rare daily word game sweeping the globe. Find what's hidden in plain sight.
KIESELGUHR
Definition of KIESELGUHR
noun
Diatomaceous earth, a kind of soft rock containing the remains of diatoms; it absorbs nitroglycerine and is used to manufacture dynamite.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from German Kieselguhr, older spelling of Kieselgur, from Kiesel (“pebble, gravel”) + Gur (“guhr”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- German
- English
One recorded step before English.
Deepest traced root
8th
of 58 source languages in OUTLIER
3.1%
of traced words share this origin (905)
branch · 22.3% of traced words
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.
KIESELGUHR in OUTLIER
Players have found it on 10 boards so far.
It first turned up on Day 51, 10 July 2026. The most recent board was Day 141, 8 October 2026. Nobody has seen it on a board for 6 days.
First ever to find it
on Day 51, 10 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
KIESELGUHR starts with K and ends with R. Sorted, its letters read EEGHIKLRSU - the shape to hunt for when the grid is scrambled. E appears more than once.
Words that start KIESEL
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 51
Could you have found KIESELGUHR?
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 51 - and most players walked straight past it.
Play today's OUTLIER