speech vs linguistic communication

speech and linguistic communication both are nouns.

Word	Noun	Adjective	Verb	Adverb
speech	Yes	No	No	No
linguistic communication	Yes	No	No	No

speech (noun)	linguistic communication (noun)
the mental faculty or power of vocal communication	a systematic means of communicating by the use of sounds or conventional symbols
(language) communication by word of mouth
the act of delivering a formal spoken communication to an audience
words making up the dialogue of a play
a lengthy rebuke
the exchange of spoken words
your characteristic style or manner of expressing yourself orally
something spoken