Supports the Faces (12)
I believe the answer is:
countenances
This might be a double definition.
'supports' is the first definition.
The answer and definition can be both related to communication as well as being plural nouns.
Maybe they are linked in a way I don't understand?
'the faces' is the second definition.
(countenance is a kind of face)
Can you help me to learn more?
(Other definitions for countenances that I've seen before include "facial expressions" , "Approves of" , "sanctions" , "Faces" .)