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