The rare daily word game sweeping the globe. Find what's hidden in plain sight.
TROCHOID
Definition of TROCHOID
noun
The curve traced by a point on a circle as it rolls along a straight line
Wiktionary · CC BY-SA
Where it comes from
From Ancient Greek τροχοειδής (trokhoeidḗs), from τροχός (trokhós, “wheel”) + εἶδος (eîdos, “form, image”).
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.
TROCHOID in OUTLIER
Players have found it on 5 boards so far.
It first turned up on Day 41, 30 June 2026. The most recent board was Day 116, 13 September 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 41, 30 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
TROCHOID starts with T and ends with D. Sorted, its letters read CDHIOORT - the shape to hunt for when the grid is scrambled. O appears more than once.
Words that start TROCHO
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found TROCHOID?
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 41 - and most players walked straight past it.
Play today's OUTLIER