It's Merriam-Webster's Word of the Day for September 15.
Today's word is liminal spelled L-I-M-I-N-A-L.
Liminal is an adjective.
It's a formal word.
most often used to describe an intermediate state phase or condition.
It can also describe something that is barely perceptible or barely capable of eliciting a response.
Here's the word used in a sentence from lithub.com by Fiona Williams.
The House of Broken Bricks is set in a fictional village situated on the very real Somerset levels in southwest England.
This is a liminal space that, despite ongoing modernization,
is constantly fighting to revert into ancient marshlands.
Here the flora and fauna intrude into everyday living,
whether it be through the ritual hunting of roe deer come autumn,
the picking of ripe slows for gin, the return of house martins every spring,
or the war against cabbage white caterpillars on the salad greens.
Liminal is a word for the in-between.
It describes states, times, spaces, etc. that exist as a point of change,
a metaphorical threshold, as in the liminal zone between sleep and wakefulness.
The idea of a threshold is at the word's root.
It comes from the Latin word limen, meaning threshold.
In technical use, liminal means barely perceptible, or barely capable of eliciting a response.