blotter vs rap sheet

blotter and rap sheet both are nouns.

Word	Noun	Adjective	Verb	Adverb
blotter	Yes	No	No	No
rap sheet	Yes	No	No	No

As nouns, blotter and rap sheet are synonyms defined as:

blotter and rap sheet: the daily written record of events (as arrests) in a police station

Other synonyms of blotter include charge sheet, day book, police blotter.

blotter (noun)	rap sheet (noun)
the daily written record of events (as arrests) in a police station	the daily written record of events (as arrests) in a police station
absorbent paper used to dry ink