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

FIDO

4 letters

Definition of FIDO

noun

A coin that is defective, having been incorrectly minted, often prized by collectors.

Wiktionary · CC BY-SA

Where it comes from

An acronym of the words freaks, irregulars, defects, oddities, from the 1960s.

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.

FIDO in OUTLIER

Players have found it on 13 boards so far. 16 players have found it across Outlier's history.

Day 1Day 102
Its 13 boards, across 102 finished boards · taller bars are busier boards
13
Boards found on
7
First board
89
Latest board
22
Longest gap, days

It first turned up on Day 7, 28 May 2026. The most recent board was Day 89, 17 August 2026. Nobody has seen it on a board for 13 days.

First found by a player on Day 7, 28 May 2026.

Built from these letters

FIDO
4
Letters
2
Vowels
2
Consonants
4
Different letters
1
Longest consonant run
1
Longest vowel run

FIDO starts with F and ends with O. Sorted, its letters read DFIO - 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 FIDO

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found FIDO?

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

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The OUTLIER card for FIDODownload image