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

WACKO

/ˈwæ.kəʊ/5 letters

Definition of WACKO

adjective

Amusingly eccentric or irrational.

Wiktionary · CC BY-SA

Where it comes from

From wack(y) + -o.

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.

WACKO in OUTLIER

Players have found it on 11 boards so far. 15 players have found it across Outlier's history.

Day 1Day 120
Its 11 boards, across 120 finished boards · taller bars are busier boards
11
Boards found on
42
First board
112
Latest board
20
Longest gap, days

It first turned up on Day 42, 1 July 2026. The most recent board was Day 112, 9 September 2026. Nobody has seen it on a board for 8 days.

First ever to find it

princess

on Day 42, 1 July 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

WACKO
5
Letters
2
Vowels
3
Consonants
5
Different letters
2
Longest consonant run
1
Longest vowel run

WACKO starts with W and ends with O. Sorted, its letters read ACKOW - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

Words that start WACKO

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found WACKO?

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 42 - and most players walked straight past it.

Play today's OUTLIER

Share WACKO

The OUTLIER card for WACKODownload image