нареч. at home быть дома – to be in быть как дома – to be at one's ease, to feel at home, to make oneself at home не все дома
at home
~ ли он? is he in?, is he at home?
его нет ~ he`s not at home
быть как ~ make* one self at home
у него не все ~ разг. he`s not quite all there, he is off his rocker