masquerade in WordNet English dictionary

1. a costume worn as a disguise at a masquerade party
   fancy dress  masquerade  masquerade costume 
   
2. a party of guests wearing costumes and masks
   masquerade  masquerade party  masque  mask 
   
3. making a false outward show
   "a beggar's masquerade of wealth"
   masquerade 
   

1. pretend to be someone or something that you are not
   "he is masquerading as an expert on the internet"; "This silly novel is masquerading as a serious historical treaty"
   masquerade 
   
2. take part in a masquerade
   masquerade