visage vs physiognomy

visage and physiognomy both are nouns.

Word	Noun	Adjective	Verb	Adverb
visage	Yes	No	No	No
physiognomy	Yes	No	No	No

As nouns, visage and physiognomy are synonyms defined as:

visage and physiognomy: the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)

Other synonyms of visage include countenance, kisser, mug, phiz, smiler.

visage (noun)	physiognomy (noun)
the appearance conveyed by a person's face	the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)