a 'masked' ball [=a formal party for dancing at which people wear masks]
She 'masked' [='hid'] her anger with a smile.
The bank was held up by 'masked' robbers.
(..) I understand we have a witness? Not really. He was pretty intoxicated. He claims he was hit by a pair of masked assailants, Who swung matching shovels at the exact same time. Oh, so he was seeing double, right? You talking about (..)2016 TvShow: Bones Title: The Secret in the Service Season: 11 Episode 17