Datum and Epistle

Datum noun - A single piece of information.

Epistle and datum are semantically related. in note topic. In some cases you can use "Epistle" instead a noun "Datum", when it comes to topics like written communication.

Epistle noun - A message on paper from one person or group to another.

Datum and epistle are semantically related. Sometimes you can use "Datum" instead a noun "Epistle".