What's the plural form of phonocentrism? Here's the word you're looking for.
Answer
The noun phonocentrism can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be phonocentrism.
However, in more specific contexts, the plural form can also be phonocentrisms e.g. in reference to various types of phonocentrisms
or a collection of phonocentrisms.