post vs stake

post and stake both are nouns.

Word	Noun	Adjective	Verb	Adverb
post	Yes	No	Yes	No
stake	Yes	No	Yes	No

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

post: an upright consisting of a piece of timber or metal fixed firmly in an upright position
stake: a strong wooden or metal post with a point at one end so it can be driven into the ground

As nouns, post and stake are synonyms defined as:

post and stake: a pole or stake set up to mark something (as the start or end of a race track)

As verbs, post and stake are synonyms defined as:

post (noun)	stake (noun)
a job in an organization	a strong wooden or metal post with a point at one end so it can be driven into the ground
the delivery and collection of letters and packages	instrument of execution consisting of a vertical post that a victim is tied to for burning
an upright consisting of a piece of timber or metal fixed firmly in an upright position	a pole or stake set up to mark something (as the start or end of a race track)
military installation at which a body of troops is stationed	the money risked on a gamble
the system whereby messages are transmitted via the post office	(law) a right or legal share of something; a financial involvement with something
a pole or stake set up to mark something (as the start or end of a race track)
A message on a social media website
any particular collection of letters or packages that is delivered
the position where someone (as a guard or sentry) stands or is assigned to stand

post (verb)	stake (verb)
display, as of records in sports games	place a bet on
mark or expose as infamous	mark with a stake
cause to be directed or transmitted to another place	tie or fasten to a stake
publicize with, or as if with, a poster	kill by piercing with a spear or sharp pole
To post a message on a social media website	put at risk
assign to a station
place so as to be noticed
mark with a stake
affix in a public place or for public notice
ride Western style and bob up and down in the saddle in rhythm with a horse's trotting gait
transfer (entries) from one account book to another
enter on a public list
assign to a post; put into a post