matter of the highest priority; top priority; first priority
precautions; warnings; matters to be attended to; things to note; suggestions; hints
message; informative matter
fixed content; settled matter; done deal
closely-guarded secret; top secret
necessary information; required fields (e.g. in a form)
prohibited item; banned item
important matter; matters of weight
items mentioned; contents (of a record); recorded items; entries
sole prerogative; exclusive prerogative
related (relevant) matters; matters relevant to the subject
understanding (between the two)
matters for investigation; matters to be examined; research agenda
points to note; points of concern; matters to keep in mind; matters that require attention
disclaimer; exemption clause; exclusions (liability, responsibility, etc.)
relevant items; applicable items
matters for identification; documentation
registered matter; matters to be registered