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