window dressing vs facade

window dressing and facade both are nouns.

Word	Noun	Adjective	Verb	Adverb
window dressing	Yes	No	No	No
facade	Yes	No	No	No

As nouns, window dressing and facade are synonyms defined as:

window dressing and facade: a showy misrepresentation intended to conceal something unpleasant

window dressing (noun)	facade (noun)
the decoration of shop windows	the face or front of a building
a showy misrepresentation intended to conceal something unpleasant	a showy misrepresentation intended to conceal something unpleasant