1. союз
that; as if, as though
говорят, якобы он умер — they say that he has died
он вообразил, якобы его произвели в генералы — he imagined he had been made a general
2. частица
supposedly, ostensibly, allegedly, purportedly; as if, as though
он якобы все понял — he says he has understood everything
он приехал к нам якобы для того, чтобы работать — he came to us with the alleged purpose of working, he came to us supposedly to work
мы посмотрели эту якобы страшную картину — we have seen this supposedly dreadful film