I know the sound name of 's' or 'sh' is called sibilant. This pronunciation name is useful and could be used to summarize the pronunciation rules, instead of listing all the individual letters.
But for this list - 's', 'z', 'sh', 'ch' and 'j'(/dʒ/) , what is their sound name? If there is no such a single name to cover them all, what's the descriptive language for them?
This list is special because the final 's' at the end of their plural forms is pronounced as /əz/.