The rare daily word game sweeping the globe. Find what's hidden in plain sight.
TREPAN
Definition of TREPAN
noun
A tool used to bore through rock when sinking shafts.
Wiktionary · CC BY-SA
Where it comes from
Borrowed into Middle English from Old French trepan, from Latin trepanum, from Ancient Greek τρύπανον (trúpanon, “auger, borer”). Doublet of trephine.
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.
TREPAN in OUTLIER
Players have found it on 36 boards so far. 84 players have found it across Outlier's history.
It first turned up on Day 10, 30 May 2026. The most recent board was Day 95, 23 August 2026. It was on the latest finished board.
First ever to find it
on Day 10, 30 May 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
TREPAN starts with T and ends with N. Sorted, its letters read AENPRT - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
5 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start TREPAN
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 10
Could you have found TREPAN?
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 10 - and most players walked straight past it.
Play today's OUTLIER