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

SPLINE

/ˈsplaɪ̯n/6 letters

Definition of SPLINE

noun

A long, thin piece of metal or wood.

Wiktionary · CC BY-SA

Where it comes from

Mid-1700s East Anglian dialect. Origin uncertain but perhaps from Old Danish splind or North Frisian splinj and ultimately related to the root of splinter.

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.

SPLINE in OUTLIER

Players have found it on 37 boards so far. 58 players have found it across Outlier's history.

Day 1Day 102
Its 37 boards, across 102 finished boards · taller bars are busier boards
37
Boards found on
12
First board
102
Latest board
14
Longest gap, days

It first turned up on Day 12, 1 June 2026. The most recent board was Day 102, 30 August 2026. It was on the latest finished board.

First ever to find it

loe

on Day 12, 1 June 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

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

SPLINE starts with S and ends with E. Sorted, its letters read EILNPS - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

Same letters, different word

2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.

PENSILSPINEL

Words that start SPLINE

Its neighbours in the OUTLIER dictionary - shortest first.

SPLINEDSPLINES

Could you have found SPLINE?

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 12 - and most players walked straight past it.

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The OUTLIER card for SPLINEDownload image