face vs mouth

face and mouth both are nouns.

Word	Noun	Adjective	Verb	Adverb
face	Yes	No	Yes	No
mouth	Yes	No	Yes	No

face (noun)	mouth (noun)
a vertical surface of a building or cliff	the opening of a jar or bottle
the side upon which the use of a thing depends (usually the most prominent surface of an object)	the externally visible part of the oral cavity on the face and the system of organs surrounding the opening
the striking or working surface of an implement	the opening through which food is taken in and vocalizations emerge
the general outward appearance of something	an impudent or insolent rejoinder
status in the eyes of others	the point where a stream issues into a larger body of water
impudent aggressiveness	an opening that resembles a mouth (as of a cave or a gorge)
the feelings expressed on a person's face	a person conceived as a consumer of food
the front of the human head from the forehead to the chin and ear to ear	a spokesperson (as a lawyer)
the part of an animal corresponding to the human face
a specific size and style of type within a type family
a contorted facial expression
a surface forming part of the outside of an object
a part of a person that is used to refer to a person

face (verb)	mouth (verb)
deal with (something unpleasant) head on	express in speech
present somebody with something, usually to accuse or criticize	articulate silently; form words with the lips only
oppose, as in hostility or a competition	touch with the mouth
line the edge (of a garment) with a different material
cover the front or surface of
turn so as to face; turn the face in a certain direction
turn so as to expose the face
be oriented in a certain direction, often with respect to another reference point; be opposite to
be opposite