A facade is the front of a building, or a kind of front people put up emotionally. If you're mad but acting happy, you're putting up a facade. This word has to do with the outer layer of something. One sense has to do with the front or outside of a building . After plastering or brickwork, the process that has a protective effect on the outside of the building is called façade work. A facade in architecture is an exterior wall of a building, usually one with doors or windows. Often the word refers to a structure's front wall with an entrance. The front facade tends to be more imposing or decorative.