spoken language vs word

spoken language and word both are nouns.

Word	Noun	Adjective	Verb	Adverb
spoken language	Yes	No	No	No
word	Yes	No	Yes	No

As nouns, word is a hyponym of spoken language; that is, word is a word with a more specific, narrower meaning than spoken language:

spoken language (noun)	word (noun)
(language) communication by word of mouth	a unit of language that native speakers can identify
	a promise
	information about recent and important events
	a brief statement
	an exchange of views on some topic
	a secret word or phrase known only to a restricted group
	a verbal command for action
	a string of bits stored in computer memory

spoken language (verb)	word (verb)
	put into words or an expression