Other hyponyms of communication include
publication,
message,
contagion,
infection,
language,
linguistic communication,
black and white,
written communication,
written language,
content,
message,
subject matter,
substance,
didacticism,
sign,
signal,
signaling,
signalling,
sign,
indicant,
indication,
visual communication,
display,
expressive style,
style,
paralanguage,
paralinguistic communication,
auditory communication,
phonation,
vocalisation,
vocalism,
vocalization,
voice,
vox,
anomalous communication,
psychical communication,
voice,
document.