The journalist traveled the city 'disguised as' [=dressed like; pretending to be] a beggar.
She 'disguised' herself 'as' a musician to get into the concert hall early.
He tried to 'disguise' his voice on the phone but I could tell it was him.
(..) lf you ssked me, l'd go home tomorrow. lf you wanted. Darling, you know we can't go home. There might be a war. Oh, Geoffrey you do so love a disguise. l do so love you. Mmm. - What do you smell of? - What? Marzipan. l think you've got marzipan (..)1996 The English Patient