For example: I have a sister named Charlotte. Charlotte is married to Martin. Martin has a brother named William. Martin is my brother-in-law, but what is William to me?
Is "twin brothers" correct? Or is it also incorrect like "cousin brother"?
Here, I am confused. I cannot say "younger daughter-in-law" as the order of sons is defined by their age but we can't say that about their wives. So shall I say "my second daughter-in-law"?
Can I use these words? A gay couple (not sure if couple can be used only for married people) A gay lovers (not sure if I should put s here or if lovers can be used to describe two people ...
Is there a single word or phrase that means a parent whose grown-up children are not living with them?