nota bene vs notation

nota bene and notation both are nouns.

Word	Noun	Adjective	Verb	Adverb
nota bene	Yes	No	No	No
notation	Yes	No	No	No

As nouns, notation is a hypernym of nota bene; that is, notation is a word with a broader meaning than nota bene:

nota bene: a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something
notation: a comment or instruction (usually added)

Other hypernyms of nota bene include annotation, note.

nota bene (noun)	notation (noun)
a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something	the activity of representing something by a special system of marks or characters
	a technical system of symbols used to represent special things
	a comment or instruction (usually added)