Very short: the Tanakh is the Jewish Scripture; our Old Testament.
Expanded a bit: the Tanakh is divided into three parts:
1- The Law (the five Books of Moses)
2- The Prophets (divided further into the Former Prophets and the Latter Prophets
3- the Writings (Poetry, Wisdom, short stories)
What I learned is that the deuterocanonical books (Apocrypha) are disputed among Christians, and were also disputed among Jews.
The Egyptian Jews accepted the books as canonical; Hebrew Jews did not.
I found that interesting.