count vs census

count and census both are nouns.

Word	Noun	Adjective	Verb	Adverb
count	Yes	No	Yes	No
census	Yes	No	Yes	No

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

Other hyponyms of count include blood count, nose count, nosecount, countdown, miscount, poll, recount, sperm count.

As verbs, census is a hyponym of count; that is, census is a word with a more specific, narrower meaning than count:

Other hyponyms of count include recount, miscount, add, add together, add up, sum, sum up, summate, tally, tot, tot up, total, tote up.

count (noun)	census (noun)
the act of counting; reciting numbers in ascending order	a periodic count of the population
a nobleman (in various countries) having rank equal to a British earl
the total number counted

count (verb)	census (verb)
include as if by counting	conduct a census
have faith or confidence in
take account of
determine the number or amount of
name or recite the numbers in ascending order
show consideration for; take into account
have weight; have import, carry weight
put into a group
have a certain value or carry a certain weight