nota bene vs annotation

nota bene and annotation both are nouns.

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

As nouns, annotation is a hypernym of nota bene; that is, annotation 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
annotation: a comment or instruction (usually added)

Other hypernyms of nota bene include notation, note.

nota bene (noun)	annotation (noun)
a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something	the act of adding notes
	a comment or instruction (usually added)