The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SACRUM
Definition of SACRUM
noun
A large triangular bone at the base of the spine, located between the two ilia (wings of the pelvis) and formed from vertebrae that fuse in adulthood.
Wiktionary · CC BY-SA
Where it comes from
From Latin os sacrum (“holy bone”), a calque of Ancient Greek ἱερὸν ὀστέον (hieròn ostéon). Apparently so called either because the sacrum was the part of the animal offered in sacrifice or because of a putative belief that it is where a person's soul resides. A third explanation is that the term is a translation of Ancient Greek ἱερόν (hierón), which has two meanings: “holy, sacred”, and “big” — big being a more appropriate description of the sacrum — but compare.
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.
SACRUM in OUTLIER
Players have found it on 35 boards so far. 76 players have found it across Outlier's history.
It first turned up on Day 14, 3 June 2026. The most recent board was Day 110, 7 September 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 14, 3 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
SACRUM starts with S and ends with M. Sorted, its letters read ACMRSU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Also seen on Day 14
Could you have found SACRUM?
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 14 - and most players walked straight past it.
Play today's OUTLIER