The usual term on signs etc. is Public Conveniences.
They will be labelled Gentlemen and Ladies and usually marked with internationally recognized symbols.
Conversationally they are referred to as toilets or (more commonly) loos.
Restroom may be understood but the American expression bathroom is not used in the same way.
People in England call the bathroom the loo. I have no idea why.
We call it the bathroom faucet.
What will you do if a child met accident in the bathroom
banos
European.
A call of nature is a euphemism for the urge to visit the bathroom.
A person who steals clothes from public bathroom is a theif.
plumber!
People from London NEVER call it 'London England', they just call it London. Only people from the USA call it 'London England'.
This is a hippie term from hidin in the bathroom to smoke weed.
The home that I am currently renting has no bathroom mirrors. Where is the best place to go to get bathroom mirrors? Do I need to call someone to install them or can I do it myself?
His Bathroom