(economics) An economic metric that measures the market share of some number n of firms within an industry or market sector.

(pharmacology) Synonym of para-acetylaminophenol (acetaminophen / paracetamol / tylenol)

(informal) Indulgent and pleasurable activities.

(dated or colloquial) not

Abbreviation of New Brunswick. / Abbreviation of North Britain.

Alternative form of n.b.

Initialism of North Carolina.

Abbreviation of nota bene.

(banking, US) Initialism of national association – a national bank, as defined in the National Banking Act / (linguistics) Abbreviation of numerary adjunct.

Pronunciation spelling of New York, representing New York City English.