There are 3 definitions of nb in English:

nb1

Line breaks: nb

abbreviation

Cricket
No-ball.

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Word of the day keek
Pronunciation: kiːk
verb
peep surreptitiously

There are 3 definitions of nb in English:

NB3

Line breaks: NB

abbreviation

1New Brunswick (in official postal use).
1.1Nota bene; take special note.
[Latin]

Definition of nb in: