vox vs communication

vox and communication both are nouns.

Word	Noun	Adjective	Verb	Adverb
vox	Yes	No	No	No
communication	Yes	No	No	No

As nouns, communication is a hypernym of vox; that is, communication is a word with a broader meaning than vox:

vox: the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
communication: something that is communicated by or to or between people or groups

vox (noun)	communication (noun)
the sound made by the vibration of vocal folds modified by the resonance of the vocal tract	something that is communicated by or to or between people or groups
	the activity of communicating; the activity of conveying information
	a connection allowing access between persons or places