The rare daily word game sweeping the globe. Find what's hidden in plain sight.
TETRA
Definition of TETRA
noun
Any of numerous species of small freshwater fish of the South American family Characidae and West African family Alestidae, popular in home aquariums.
Wiktionary · CC BY-SA
Where it comes from
From translingual Tetragonopterus, an obsolete genus that included these fish, ultimately from Ancient Greek τετράγωνος (tetrágōnos, “square, quadrilateral”) + πτερόν (pterón, “wing, fin”).
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.
TETRA in OUTLIER
Players have found it on 3 boards so far.
It first turned up on Day 106, 3 September 2026. The most recent board was Day 120, 17 September 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 106, 3 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
TETRA starts with T and ends with A. Sorted, its letters read AERTT - the shape to hunt for when the grid is scrambled. T appears more than once.
Same letters, different word
3 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start TETRA
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found TETRA?
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 106 - and most players walked straight past it.
Play today's OUTLIER