What is the difference between isolation domain and concurrency domain?

[stzn]

The term “isolation domain” is used to refer to an independent unit of isolation in Data Race Safety.
Swift 6 Concurrency Migration Guide

However, it seems that the term “concurrency domain” is used for the same concept in The Swift Programming Language (TSPL).
The Swift Programming Language - Concurrency

If they refer to the same concept, which term is correct?
If these terms are different, what is the difference between them?

[stzn]

And "concurrency context" as well.
https://developer.apple.com/documentation/swift/sendable

[mattmassicotte]

This is a really great observation. All these terms are equivalent.

@hborla do you have any opinions on which would be the most resonable to standardize around?