vocabulary vs speech

vocabulary and speech both are nouns.

Word	Noun	Adjective	Verb	Adverb
vocabulary	Yes	No	No	No
speech	Yes	No	No	No

vocabulary (noun)	speech (noun)
a language user's knowledge of words	the mental faculty or power of vocal communication
the system of techniques or symbols serving as a means of expression (as in arts or crafts)	(language) communication by word of mouth
a listing of the words used in some enterprise	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