The rare daily word game sweeping the globe. Find what's hidden in plain sight.
CILIUM
Definition of CILIUM
noun
A short microscopic hairlike organelle projecting from a eukaryotic cell (such as a unicellular organism or one cell of a multicelled organism) which serve either for propulsion by causing currents in the surrounding fluid or as sensors.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from Latin cilium (“eyelid”).
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.
CILIUM in OUTLIER
Players have found it on 15 boards so far. 32 players have found it across Outlier's history.
It first turned up on Day 20, 9 June 2026. The most recent board was Day 108, 5 September 2026. Nobody has seen it on a board for 4 days.
First ever to find it
on Day 20, 9 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
CILIUM starts with C and ends with M. Sorted, its letters read CIILMU - the shape to hunt for when the grid is scrambled. I appears more than once.
Also seen on Day 20
Could you have found CILIUM?
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 20 - and most players walked straight past it.
Play today's OUTLIER