Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
n.b. is a noun meaning "a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something". It carries one recorded sense.
Definitions, synonyms and semantic relations for n.b. come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.