1. A small gate or doorway: This is the most common meaning of "portillo". It refers to a small entrance, often in a fence or wall.
2. A narrow passage: "Portillo" can also refer to a narrow passageway, like a corridor or a small street.
3. A mountain pass: This meaning is less common but still used. "Portillo" can refer to a mountain pass, particularly in the Andes mountains.
4. A surname: "Portillo" is also a common Spanish surname.
To determine the specific meaning of "portillo" in a given context, you need to look at the surrounding words and the overall meaning of the sentence.