The rare daily word game sweeping the globe. Find what's hidden in plain sight.
CATHEPSIN
Definition of CATHEPSIN
noun
Any of a family of proteases primarily active within lysosomes.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from German Kathepsin, from Ancient Greek καθέψω (kathépsō), from κατά (katá, “down”) + ἕψω (hépsō, “boil”).
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.
CATHEPSIN in OUTLIER
Players have found it on 4 boards so far.
It first turned up on Day 35, 24 June 2026. The most recent board was Day 103, 31 August 2026. Nobody has seen it on a board for 19 days.
First ever to find it
on Day 35, 24 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
CATHEPSIN starts with C and ends with N. Sorted, its letters read ACEHINPST - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start CATHEP
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 35
Could you have found CATHEPSIN?
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 35 - and most players walked straight past it.
Play today's OUTLIER