phrasal
: among numberless possibilities : ever — used as an intensive
where on earth can he be?
I can't imagine who on earth would do such a thing
what on earth shall we do?
phrasal
: among numberless possibilities : ever — used as an intensive
where on earth can he be?
I can't imagine who on earth would do such a thing
what on earth shall we do?
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012