Is there a term for use of a combined singular / plural like parent(s)?
For example:
Do not assume there are two parents when you pen the letter regarding baby Bob;
use _____ instead.
or
use the _____ approach instead?
I am not asking if parent(s) is good style - that is separate issue.
I have seen a question asking how to add a possessive 's to it but that is separate problem.
I googled for this but am not sure what to even search for.