What's the plural form of compartmentalisation? Here's the word you're looking for.
Answer
The noun compartmentalisation can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be compartmentalisation.
However, in more specific contexts, the plural form can also be compartmentalisations e.g. in reference to various types of compartmentalisations
or a collection of compartmentalisations.
Examples
Programmes are run departmentally with little vertical compartmentalisation.
The letter also tackles the integration of national regionalisation and compartmentalisation programmes and the development of compensation funds.