reason vs account

reason and account both are nouns.

Word	Noun	Adjective	Verb	Adverb
reason	Yes	No	Yes	No
account	Yes	No	Yes	No

As nouns, account is a hypernym of reason; that is, account is a word with a broader meaning than reason:

reason: an explanation of the cause of some phenomenon
account: a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.

Other hypernyms of reason include explanation.

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

Other hyponyms of reason include score, wherefore, why.

reason (noun)	account (noun)
the capacity for rational thought or inference or discrimination	the quality of taking advantage
a fact that logically justifies some premise or conclusion	importance or value
a justification for something existing or happening	a record or narrative description of past events
an explanation of the cause of some phenomenon	an itemized statement of money owed for goods shipped or services rendered
a rational motive for a belief or action	a short account of the news
the state of having good sense and sound judgment	a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.
	the act of informing by verbal report
	grounds
	a statement of recent transactions and the resulting balance
	a formal contractual relationship established to provide for regular banking or brokerage or business services

reason (verb)	account (verb)
think logically	furnish a justifying analysis or explanation
decide by reasoning; draw or come to a conclusion	to give an account or representation of in words
present reasons and arguments	keep an account of
	be the sole or primary factor in the existence, acquisition, supply, or disposal of something