The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SINUS
Definition of SINUS
noun
A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).
Wiktionary · CC BY-SA
Where it comes from
Learned borrowing from Latin sinus (“a bent surface, curve, hollow”). Doublet of sine.
Etymology via Wiktionary (CC BY-SA).
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
SINUS in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 90, 18 August 2026. Nobody has seen it on a board for 30 days.
First found by a player on Day 90, 18 August 2026.
Built from these letters
SINUS starts with S and ends with S. Sorted, its letters read INSSU - the shape to hunt for when the grid is scrambled. S 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 SINUS
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found SINUS?
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 90 - and most players walked straight past it.
Play today's OUTLIER