shakedown vs vernacular

shakedown and vernacular both are nouns.

Word	Noun	Adjective	Verb	Adverb
shakedown	Yes	Yes	No	No
vernacular	Yes	Yes	No	No

shakedown (noun)	vernacular (noun)
extortion of money (as by blackmail)	the everyday speech of the people (as distinguished from literary language)
a very thorough search of a person or a place	a characteristic language of a particular group (as among thieves)
initial adjustments to improve the functioning or the efficiency and to bring to a more satisfactory state

shakedown (adjective)	vernacular (adjective)
intended to test a new system under operating conditions and to familiarize the operators with the system	being or characteristic of or appropriate to everyday language