The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PLASTRON
Definition of PLASTRON
noun
The nearly flat part of the shell structure of a tortoise or other animal, similar in composition to the carapace.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from French plastron, from Italian piastrone, augmentive of piastra (“breastplate”), from Latin emplastrum (“plaster”), from Ancient Greek ἔμπλαστρον (émplastron), from ἔμπλαστος (émplastos, “daubed, plastered”), from ἔμπλασσειν (émplassein, “to mould, form”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
4 recorded generations before English.
Deepest traced root
3rd
of 59 source languages in OUTLIER
12.2%
of traced words share this origin (9,517)
branch · 12.2% of traced words
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
PLASTRON in OUTLIER
Players have found it on 42 boards so far. 43 players have found it across Outlier's history.
It first turned up on Day 13, 2 June 2026. The most recent board was Day 158, 25 October 2026. It was on the latest finished board.
First found by a player on Day 13, 2 June 2026.
Built from these letters
PLASTRON starts with P and ends with N. Sorted, its letters read ALNOPRST - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start PLASTR
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 13
Could you have found PLASTRON?
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 13 - and most players walked straight past it.
Play today's OUTLIER