Answer: Entre.
Step-by-step explanation: To say that something is between two things, you can use "entre"
An example of this can be:
El baño está entre la habitación y la cocina.
that means:
"The bathroom is between the room and the kitchen"
This also can be used for time:
Voy a llegar entre las diez y las once.
"Im going to arrive between ten o'clock and eleven o'clock"