Here are some English words that mean "false front":
* Facade: This is the most common word and refers to an outward appearance that is meant to conceal something unpleasant or untrue.
* Sham: This implies something is fake or bogus, often used to describe a deceptive or fraudulent act.
* Pretense: This refers to a false appearance or behavior intended to deceive.
* Charade: This implies a deceptive act or performance meant to hide something.
If you can provide more context about where you encountered the word "fisaud," I might be able to offer a more specific answer.