vernacular vs shakedown

vernacular and shakedown both are nouns.

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

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

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