Nb

¹ American

Symbol, Chemistry.

niobium.

NB ² American

abbreviation

enby.
nonbinary.

NB ³ American

Or N.B.

abbreviation

New Brunswick, Canada (approved for postal use).
nota bene.

NB ¹ British

abbreviation

nota bene

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Nb ² British

symbol

niobium

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

NB ³ British

abbreviation

New Brunswick

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

nb ⁴ British

abbreviation

no ball

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

N.B. Cultural

An abbreviation for the Latin phrase nota bene, meaning “note well.” It is used to emphasize an important point.

Etymology

Origin of NB

Latin: note well

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023