There are 2 definitions of Gb in English:

Gb1

Syllabification: Gb

abbreviation

Computing
Gigabit(s).

Definition of Gb in:

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Word of the day flippant
Pronunciation: ˈflɪp(ə)nt
adjective
not showing a serious or respectful attitude

There are 2 definitions of Gb in English:

GB2

Syllabification: GB

abbreviation

1 Computing Gigabyte(s).
1.1Great Britain.

Definition of Gb in: