For example, I have mentioned "compatibility with A", "compatibility with B", and "compatibility with C" in various places in a document. Now when I talk about such compatibility collectively, can I say
"compatibilities with A, B and C"?
Under what conditions can non-count nouns be used countably?
For example, I have mentioned "compatibility with A", "compatibility with B", and "compatibility with C" in various places in a document. Now when I talk about such compatibility collectively, can I say "compatibilities with A, B and C"?-- Yes, probably. (I say probably because the grammar of the specific sentence may determine the choice, rather than the greater context.)
Some of the use of non-count nouns in a countable way is so common that they are already mentioned in dictionaries, such as coffees, peoples, a grief, travels, a wounded pride. "Compatibility" is not (yet) mentioned as countable in any dictionary that I've checked. However, I've seen "compatibitilies" very often and there are a lot of hits from Goo