There are 2 definitions of Tb in English:

Tb1

Syllabification: Tb

symbol

The chemical element terbium.

abbreviation

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Bible Tobit.

Definition of Tb in:

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Word of the day apposite
Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something

There are 2 definitions of Tb in English:

TB2

Syllabification: TB

abbreviation

1Terabyte(s).
1.1 (also t.b.) Tubercle bacillus.
1.2 (also t.b.) Tuberculosis.

Definition of Tb in: