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