The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SOUR
Definition of SOUR
adjective
Tasting of acidity.
Wiktionary · CC BY-SA
Where it comes from
From Middle English sour, from Old English sūr (“sour”), from Proto-West Germanic *sūr, from Proto-Germanic *sūraz (“sour”), from Proto-Indo-European *súHros (“sour”). Cognate with West Frisian soer, Dutch zuur (“sour”), Low German suur, German sauer (“sour”), Danish, Norwegian Bokmål, Norwegian Nynorsk, and Swedish sur (“sour”), French sur (“sour”), Faroese súrur (“sour”), Icelandic súr (“sour, bitter”), Polish ser (“cheese”), Czech sýr (“cheese”), Slovak syr (“cheese”), Russian сырой (syroj, “raw”), Ukrainian сири́й (syrýj, “raw”), Old Church Slavonic сꙑръ (syrŭ, “moist, cheese”).
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.
SOUR in OUTLIER
Players have found it on 23 boards so far. 19 players have found it across Outlier's history.
It first turned up on Day 1, 22 May 2026. The most recent board was Day 121, 18 September 2026. It was on the latest finished board.
First found by a player on Day 7, 28 May 2026.
Built from these letters
SOUR starts with S and ends with R. Sorted, its letters read ORSU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
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 SOUR
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 1
Could you have found SOUR?
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 1 - and most players walked straight past it.
Play today's OUTLIER