noun / verb
masquerade
mas-kuh-RAYD/ˌmæskəˈreɪd/
An assumed identity presented through disguise.
The guests masquerade in elaborate costumes and masks.

Etymology
A mascherata was a gathering where people wore masks. The concealment of identity at such gatherings supplied the broader meanings of disguise and, figuratively, a false outward show.
In context
Tom Cecial, that he might not be known by his gossip when they met, fitted on over his own natural nose the false masquerade one that has been mentioned
More examples
- His masquerade as a doctor ends when someone checks his credentials.
- The fake website masquerades as a trusted charity.
- She maintains the masquerade by wearing a uniform and using a false name.
Forms
masquerade · masquerades · masqueraded · masquerading
masquerader noun — A person who assumes a false identity.