voice vs communication

voice and communication both are nouns.

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

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

voice: 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

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

voice: something suggestive of speech in being a medium of expression
communication: something that is communicated by or to or between people or groups

voice (noun)	communication (noun)
a means or agency by which something is expressed or communicated	something that is communicated by or to or between people or groups
the distinctive quality or pitch or condition of a person's speech	the activity of communicating; the activity of conveying information
the ability to speak	a connection allowing access between persons or places
the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
expressing in coherent verbal form
the melody carried by a particular voice or instrument in polyphonic music
something suggestive of speech in being a medium of expression
A term used in phonetics and phonology to characterize speech sounds, with sounds described as either voiceless (unvoiced) or voiced.
a sound suggestive of a vocal utterance
an advocate who represents someone else's policy or purpose
(metonymy) a singer
(linguistics) the grammatical relation (active or passive) of the grammatical subject of a verb to the action that the verb denotes

voice (verb)	communication (verb)
give voice to
utter with vibrating vocal chords