ˈkæ.məˌflɑːʒ dɪsˈɡaɪz dɪsˈɡaɪz dɪsˈɡaɪz dɪsˈɡaɪz the act of concealing the identity of something by modifying its appearance he is a master of disguise make unrecognizable The herb masks the garlic taste We disguised our faces before robbing the bank any attire that modifies the appearance in order to conceal the wearer's identity an outward semblance that misrepresents the true nature of something the theatrical notion of disguise is always associated with catastrophe in his stories