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