The dog days of summer are always so hot and humid.

The Dog Star is the brightest star in the constellation Canis Major.

She marked her place in the book with a dog-ear.

She handed me a dog-eared book.

I worked all day and now I'm dog-tired.

The police dog helped track down the suspect.

The prairie dog is a small burrowing rodent that is native to the grasslands of North America.

He performed a hot-dog on the ski slope.

I love eating corn dogs at the fair.

I need to walk the dog every morning.