The rare daily word game sweeping the globe. Find what's hidden in plain sight.
BOROSILICATE
Definition of BOROSILICATE
noun
Any of various minerals whose structure is formally that of a dual salt of boric and silicic acids.
Wiktionary · CC BY-SA
Where it comes from
From boro- + silicate.
Etymology via Wiktionary (CC BY-SA).
Word DNA
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.
BOROSILICATE in OUTLIER
Players have found it on 20 boards so far. 60 players have found it across Outlier's history.
It first turned up on Day 27, 16 June 2026. The most recent board was Day 130, 27 September 2026. Nobody has seen it on a board for 23 days.
First ever to find it
on Day 27, 16 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
BOROSILICATE starts with B and ends with E. Sorted, its letters read ABCEIILOORST - the shape to hunt for when the grid is scrambled. O and I appear more than once.
Words that start BOROSILI
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 27
Could you have found BOROSILICATE?
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 27 - and most players walked straight past it.
Play today's OUTLIER