1 (opposite unofficially) as an official: He attended the ceremony officially.
az: rəsmən, rəsmi olaraq
ru: официально
2 formally: The new library was officially opened yesterday.
az: rəsmən
ru: официально
3 according to what is announced publicly (though not necessarily true in fact): Officially, he is on holiday, but actually he is working on a new book.
az: rəsmi şəkildə
ru: официально