Akademik

дома
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.

Большой англо-русский и русско-английский словарь. 2001.