Sentence:  Finally , the theatrical ( and perversely erotic ) notions of dressing up , cosmetics , <WSD>disguise</WSD> , and especially change of costume ( or singularity of costume , as with Cipolla ) , are characteristically associated with the catastrophes of Mann 's stories . 
Meaning of the word marked with <WSD> tags:  an outward semblance that misrepresents the true nature of something