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