Nope the definition of one will also be what it is.<quoted text>The definition of a word will change when there needs to be a new definition of a word.
Now that there seems to be a new need for the definition of universe physicists are developing one.
You don't think that language is ironclad and unvarying do you>
Those and thousands of more all define the Universe as it's alway been
Everything that is or postulated is the universes.
Look it up and Learn to use words correctly.