The rare daily word game sweeping the globe. Find what's hidden in plain sight.
GACK
Definition of GACK
interjection
A sharp, sudden sound from someone's throat while they're coughing, vomiting, gagging, etc.
Wiktionary · CC BY-SA
Where it comes from
Apparently onomatopoeic and believed to have first appeared in comic strips. Compare gag (“to choke; to retch”) and hack (“to cough noisily”). The "cocaine" and "meth" senses apparently comes from the fact that snorting the drugs often activates a person's gag reflex.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
Same root, GACK · 2 relatives 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.
GACK in OUTLIER
Players have found it on 10 boards so far. 30 players have found it across Outlier's history.
It first turned up on Day 21, 10 June 2026. The most recent board was Day 158, 25 October 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 21, 10 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
GACK starts with G and ends with K. Sorted, its letters read ACGK - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Also seen on Day 21
Could you have found GACK?
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 21 - and most players walked straight past it.
Play today's OUTLIER