look up any word, like cunt:
 
16.
nb
Acronym for Nervous Breakdown.
Chill out, don't have an NB.
by KC J August 01, 2006
 
1.
NB
abbreviation for nota bene: used to mark something as particularly important.
The party is tomorrow at 8.

NB: Dress in formal attire.
by Jordija May 02, 2004
 
2.
Note well, an Important Note, take notice.

Nota bene is a Latin phrase, often used after a paragraph to give an extra importance to a particular idea or thought.
Also could be written as: NB
" ________________
_______ _______
___________ ___ Bla Bla Bla "
N.B. this applies to yearly members only.
by TaGGaT December 15, 2008
 
3.
NB
Abbreviation for Nota Bene ("Note Well"). Pedonator to Nojo, 10/29/09: It’s a wink-wink in the fine print: Pay attention to this, sucka.
NB: Trespassers will be shot on sight.
by JR in MA October 29, 2009
 
4.
nb
Abbreviation for "not bad"

Often used in online chat
Guy 1- How was the basketball game

Guy 2- Pretty good. I scored 14 points and grabbed 8 rebounds

Guy 1- nb
by NICCOS May 25, 2009
 
5.
nb
short for non binary. meaning out of the gender binary; not fully a girl nor fully a boy.
hey i met another nb person!!
by notcishet July 10, 2014
 
6.
N=Nails
B=Brows
S=Stache

For all them ladies out there wanting to do their necessities. Something females use to abbreviate their beauty term.
Girl 1,texting," I need to do my N.B.S."
Girl 2,texting," Gurl. You sure do...."
by Galaxy23x00 March 15, 2014
 
7.
nb
Shorthand way of writing noob in online games and sometimes used to bypass word filters which recognize "noob" as an insult.
Fackin FAMAS nb, GTFO
by huge ass nub July 10, 2013