The word 'era' is a noun; a word for a long and distinct period of history with a particular feature or characteristic.
A noun functions as the subject of a sentence or a clause, and as the object of a verb or a preposition. Example:
The era of the typewriter has past. (subject of the sentence)
This house is from the Elizabethan era. (object of the preposition 'from')
The apartheid era was a turbulent time in South Africa's history.
"How do you use Mesozoic era in a sentence." Is a sentence using the words.
'A new era of media message' is not a complete sentence. But yes, it is an endocentric phrase, because it can serve as a noun.
That phrase is from another era.
how can you use the word content in noun and verb in a sentence
Here is a sentence for you, i ! When writing was invented, a new era was created.
Samurais disappeared by the end of the Meiji era.
How can you use the word round in a sentence as a noun
Yes you can it is a noun and a verb depending on how you use it
As a noun.
its a noun
The cracks in the wall were expanding, indicating a structural problem.