The rare daily word game sweeping the globe. Find what's hidden in plain sight.
FILTER
Definition of FILTER
noun
A device which separates a suspended, dissolved, or particulate matter from a fluid, solution, or other substance; any device that separates one substance from another.
Wiktionary · CC BY-SA
Where it comes from
From Middle English filtre, from Medieval Latin filtrum (compare also Old French feutre (“felt; filter”)), from Frankish *filtir, from Proto-West Germanic *felt. See felt. Doublet of phin.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
5 recorded generations before English.
Deepest traced root
8th
of 58 source languages in OUTLIER
3.1%
of traced words share this origin (894)
branch · 22.3% of traced words
How it is built
Same root, FILT · 1 relative 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.
FILTER in OUTLIER
Players have found it on 13 boards so far. 13 players have found it across Outlier's history.
It first turned up on Day 40, 29 June 2026. The most recent board was Day 132, 29 September 2026. Nobody has seen it on a board for 12 days.
First found by a player on Day 40, 29 June 2026.
Built from these letters
FILTER starts with F and ends with R. Sorted, its letters read EFILRT - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
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 FILTER
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 40
Could you have found FILTER?
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 40 - and most players walked straight past it.
Play today's OUTLIER