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

QUACK

/kwæk/5 letters

Definition of QUACK

noun

The vocalisation made by a duck.

Wiktionary · CC BY-SA

Where it comes from

From Middle English *quacken, queken (“to croak like a frog; make a noise like a duck, goose, or quail”), from quack, qwacke, quek, queke (“quack”, interjection and noun), also kek, keke, whec-, partly of imitative origin and partly from Middle Dutch quacken (“to croak, quack”), from Old Dutch *kwaken (“to croak, quack”), from Proto-West Germanic *kwakōn, from Proto-Germanic *kwakaną, *kwakōną (“to croak”), of imitative origin. Cognate with Saterland Frisian kwoakje, kwaakje (“to quack”), Middle Low German quaken (“to quack, croak”), German quaken (“to quack, croak”), Danish kvække (“to croak”), Swedish kväka (“to croak, quackle”), Norwegian kvekke (“to croak”), Icelandic kvaka (“to twitter, chirp, quack”).

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.

QUACK in OUTLIER

Players have found it on 9 boards so far. 57 players have found it across Outlier's history.

Day 1Day 102
Its 9 boards, across 102 finished boards · taller bars are busier boards
9
Boards found on
23
First board
101
Latest board
23
Longest gap, days

It first turned up on Day 23, 12 June 2026. The most recent board was Day 101, 29 August 2026. Nobody has seen it on a board for 1 day.

First found by a player on Day 23, 12 June 2026.

Also on

Built from these letters

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

QUACK starts with Q and ends with K. Sorted, its letters read ACKQU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram. It uses Q - among the least common letters in written English.

Words that start QUACK

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found QUACK?

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 23 - and most players walked straight past it.

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