The rare daily word game sweeping the globe. Find what's hidden in plain sight.

ANTRUM

/ˈæn.tɹəm/6 letters

Definition of ANTRUM

noun

A bodily cavity, especially one having bony walls, especially one in the sinuses.

Wiktionary · CC BY-SA

Where it comes from

From Latin antrum, from Ancient Greek ἄντρον (ántron, “cave”). Doublet of antre.

Etymology via Wiktionary (CC BY-SA).

Rarity score
Withheld
Revealed only in play
Tier
Withheld
Find it yourself

OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.

ANTRUM in OUTLIER

Players have found it on 4 boards so far.

Day 1Day 120
Its 4 boards, across 120 finished boards · taller bars are busier boards
4
Boards found on
54
First board
96
Latest board
29
Longest gap, days

It first turned up on Day 54, 13 July 2026. The most recent board was Day 96, 24 August 2026. Nobody has seen it on a board for 24 days.

First ever to find it

nunnsuch

on Day 54, 13 July 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

ANTRUM
6
Letters
2
Vowels
4
Consonants
6
Different letters
3
Longest consonant run
1
Longest vowel run

ANTRUM starts with A and ends with M. Sorted, its letters read AMNRTU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

Words that start ANTRUM

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found ANTRUM?

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 54 - and most players walked straight past it.

Play today's OUTLIER

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The OUTLIER card for ANTRUMDownload image