Notabene

Nota bene (/ˈnoʊtə ˈbɛneɪ/, /ˈnoʊtə ˈbɛni/ or /ˈnoʊtə ˈbiːni/; plural form notate bene) is a Latin phrase meaning "note well". The phrase first appeared in English writing circa 1711.

Often abbreviated as N.B., N.b., or n.b. (without the punctuation in some styles: NB, Nb, or nb), nota bene is Latin for 'note well', and comes from the Latin roots notāre ("to note") and bene ("well"). It is in the singular imperative mood, instructing one individual to note well the matter at hand, i.e. to take notice of or pay special attention. In Modern English, it is used, particularly in legal papers, to draw the attention of the reader to a certain (side) aspect or detail of the subject on hand. While "NB" is also often used in academic writing, "note" is a common substitute.

...
Wikipedia