The rare daily word game sweeping the globe. Find what's hidden in plain sight.
OYSTER
Definition of OYSTER
noun
Any of certain marine bivalve mollusks, especially those of the family Ostreidae (the true oysters), usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or in brackish water in the mouth of rivers.
Wiktionary · CC BY-SA
Where it comes from
From Middle English oystre, from Old English ostre, reinforced or superseded by Anglo-Norman oistre, which is from Old French oistre, uistre (compare modern French huître); both lines (Old English and Old French) from Latin ostrea, from Ancient Greek ὄστρεον (óstreon). Doublet of ostro (“a purple dye”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
6 recorded generations before English.
Deepest traced root
2nd
of 58 source languages in OUTLIER
12.6%
of traced words share this origin (3,672)
branch · 12.6% of traced words
How it is built
Same root, OYSTER · 3 relatives in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
OYSTER in OUTLIER
Players have found it on 47 boards so far. 60 players have found it across Outlier's history.
It first turned up on Day 7, 28 May 2026. The most recent board was Day 147, 14 October 2026. It was on the latest finished board.
First ever to find it
on Day 7, 28 May 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
OYSTER starts with O and ends with R. Sorted, its letters read EORSTY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
4 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start OYSTER
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 7
Could you have found OYSTER?
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 7 - and most players walked straight past it.
Play today's OUTLIER