The rare daily word game sweeping the globe. Find what's hidden in plain sight.
CALDARIUM
Definition of CALDARIUM
noun
In Roman baths, the hottest room, with a plunge-pool. It preceded the tepidarium and frigidarium.
Wiktionary · CC BY-SA
Where it comes from
Unadapted borrowing from Latin caldārium (“room containing warm water for bathing”), substantive of caldārius (“of, pertaining to or suitable for bathing”), from caldus (“warm, hot”) + -ārius, alternative form of calidus, from caleō (“to be warm or hot; glow”).
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.
CALDARIUM in OUTLIER
Players have found it on 5 boards so far.
It first turned up on Day 56, 15 July 2026. The most recent board was Day 116, 13 September 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 64, 23 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
CALDARIUM starts with C and ends with M. Sorted, its letters read AACDILMRU - the shape to hunt for when the grid is scrambled. A appears more than once.
Words that start CALDAR
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 56
Could you have found CALDARIUM?
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 56 - and most players walked straight past it.
Play today's OUTLIER