Questions & Answers about Ese estante no aguanta tantos libros.
Ese is a demonstrative adjective meaning that.
In ese estante, it points to a specific shelf: that shelf.
Spanish has a three-way contrast that English often simplifies:
- este = this (near the speaker)
- ese = that (near the listener, or not especially near the speaker)
- aquel = that over there (far from both)
So ese estante means that shelf.
Because estante is a masculine singular noun in this sentence.
Demonstratives have to agree with the noun in gender and number:
- ese estante = that shelf
- esos estantes = those shelves
If the noun were feminine, you would use esa:
- esa mesa = that table
So the form ese is used because estante is masculine singular.