Nb

n. soft ductile metallic element used in steel alloys, columbium (Chemistry)

The letters NB or Nb may refer to:(as n.b.) an abbreviation for nota bene, a latin expression meaning "note well"An abbreviation for 'Not Bad', used in chat and slang when describing something adequateThe symbol for the chemical element NiobiumThe ISO 639 abbreviation for the Norwegian languageThe Canada Post Corporation provincial abbreviation for New BrunswickThe International Air Transport Association code for Sterling AirlinesNew Balance, a shoe manufacturerOne of several towns named New BaltimoreNarrowboat, a particular size of water vessel found on English canals.One of several areas named New BritainNigerian Breweries, a beverage company in Nigeria manufacturing alcoholic & non-alcoholic drinks including: Heineken, Star, Gulder, Maltina, Amstel Malta, Legend, and FayrouzNorth Britain, a historical term for ScotlandNoise Banker, in telecommuntications, a feature that reduces noise heard on a frequency
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Nb niobium. Nb The symbol for the element niobium. Nb chemical symbol, niobium. NB Abbreviation for 1. Needle biopsy 2. Nerve block 3. Newborn 4. [more]NB - Community and Resources

Noun
1. a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something; "the margins of his book were generously supplied with pencilled NBs"
(synonym) nota bene, N.B.
(hypernym) note, annotation, notation

Noun
1. a soft gray ductile metallic element used in alloys; occurs in niobite; formerly called columbium
(synonym) niobium, atomic number 41
(hypernym) metallic element, metal
(hyponym) columbium
(substance-holonym) niobite, columbite

NB, nota bene (Latin); take notice, mark well