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

NITROSO

/naɪˈtɹəʊsəʊ/7 letters

Definition of NITROSO

noun

The univalent radical and functional group -N=O

Wiktionary · CC BY-SA

Where it comes from

Ultimately from Latin nitrōsus. Doublet of nitrous.

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.

NITROSO in OUTLIER

Players have found it on 1 board so far.

Day 1Day 102
Its one board, across 102 finished boards · taller bars are busier boards
1
Boards found on
79
First board
23
Days since seen

It first turned up on Day 79, 7 August 2026. Nobody has seen it on a board for 23 days.

First ever to find it

nadig

on Day 79, 7 August 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

NITROSO
7
Letters
3
Vowels
4
Consonants
6
Different letters
2
Longest consonant run
1
Longest vowel run

NITROSO starts with N and ends with O. Sorted, its letters read INOORST - the shape to hunt for when the grid is scrambled. O appears more than once.

Same letters, different word

2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.

Words that start NITROS

Its neighbours in the OUTLIER dictionary - shortest first.

NITROSNITROSYLNITROSYLSNITROSAMINENITROSATIONNITROSAMINES

Could you have found NITROSO?

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 79 - and most players walked straight past it.

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The OUTLIER card for NITROSODownload image