There are 2 definitions of bn in English:

bn1

Line breaks: bn

abbreviation

Billion.

Definition of bn in:

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Word of the day iconoclasm
Pronunciation: ʌɪˈkɒnəklaz(ə)m
noun
attacking or rejecting cherished beliefs or established values...

There are 2 definitions of bn in English:

Bn2

Line breaks: Bn

abbreviation

1Baron.
1.1Battalion.