1. If it rains tonight, they'll stay dry within the tent.

(within = inside)

 2. Within this cake, there's a creamy filling.

 3. The last time I bought a dozen eggs, there were a couple of broken eggs within the carton.

(dozen = 12)

 4. A pitcher keeps the ball within his mitt until he's ready to throw it.

 5. After they first met, they got married within six months.

(within = inside an amount of time)

 7. If you get food from a fast-food restaurant, your order will be ready to go within just a few minutes.