N.B.

 Dictionary entry overview: What does N.B. mean? 

• N.B. (noun)
  The noun N.B. has 1 sense:

1. a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something

  Familiarity information: N.B. used as a noun is very rare.

 Dictionary entry details 

• N.B. (noun)

Sense 1

Meaning:

A Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something

Classified under:

Nouns denoting communicative processes and contents

Synonyms:

N.B.; NB; nota bene

Context example:

the margins of his book were generously supplied with pencilled NBs

Hypernyms ("N.B." is a kind of...):

annotation; notation; note (a comment or instruction (usually added))