This question already has an answer here:
Is your neighbor moving out?
Not knowing there sex of the neighbor, what is the correct response to this question?
Yes they are.?
But something with this doesn't sit right with me. 'They' may well be the correct response if asking if your neighborS are moving out, but the question was singular.
Knowing the sex of the neighbor, you could say 'he' or 'she' is...
As a native English speaker, this question confused me enough to sign up and ask. Please opine.