blotter vs written account

blotter and written account both are nouns.

Word	Noun	Adjective	Verb	Adverb
blotter	Yes	No	No	No
written account	Yes	No	No	No

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

blotter: the daily written record of events (as arrests) in a police station
written account: a written document preserving knowledge of facts or events

Other hypernyms of blotter include written record.

blotter (noun)	written account (noun)
the daily written record of events (as arrests) in a police station	a written document preserving knowledge of facts or events
absorbent paper used to dry ink