Answer:
The correct answer is La ventanilla.
Explanation:
Despite not having the list since it was not included in the question, I can tell you that "billetes" are bought at a "ventanilla".
As long as you have these kinds of exercises, and you have such a list of definitions, the best thing you can do is take a dictionary and look for each of these words there. Once you have the definitions it will be easier for you to find the correct answers.
La palabra que no es indefinida es una de las que selecsionastes
1. Yo vine a la escuela cada día a las ocho menos cuarto.
2. Tú jugaste bien al voleibol.
The Answer is Delgado. Gordo means Fat and Delgado means skinny.