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