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

SEROTINE

/ˈsɛɹətaɪn/8 letters

Definition of SEROTINE

noun

Any of the genus Eptesicus of several small bats.

Wiktionary · CC BY-SA

Where it comes from

Borrowed from French sérotine, from Latin sērōtina, a feminine form of sērōtinus (“late (in ripening, etc.); relating to the evening”) (referring to the bats being active late in the evening), from sērō (“at a late hour; too late”, adverb) (from sērus (“late, too late; slow, tardy”, adjective); ultimately from Proto-Indo-European *seh₁- (“lasting; long”)) + -tinus (suffix forming adjectives from adverbs relating to time).

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.

SEROTINE in OUTLIER

Players have found it on 3 boards so far.

Day 1Day 120
Its 3 boards, across 120 finished boards · taller bars are busier boards
3
Boards found on
98
First board
120
Latest board
17
Longest gap, days

It first turned up on Day 98, 26 August 2026. The most recent board was Day 120, 17 September 2026. It was on the latest finished board.

First ever to find it

cuteus

on Day 98, 26 August 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

SEROTINE
8
Letters
4
Vowels
4
Consonants
7
Different letters
1
Longest consonant run
1
Longest vowel run

SEROTINE starts with S and ends with E. Sorted, its letters read EEINORST - the shape to hunt for when the grid is scrambled. E appears more than once.

Same letters, different word

One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.

Words that start SEROTI

Its neighbours in the OUTLIER dictionary - shortest first.

SEROTINYSEROTINALSEROTINESSEROTINIESSEROTINOUS

Could you have found SEROTINE?

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 98 - and most players walked straight past it.

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