The ocean is deep.

He dug deep into the ground.

The submarine explored the deep of the Pacific Ocean.

The deepness of the ocean is awe-inspiring.

Scientists are studying the mysteries of deep space.

I love to deep-fry chicken wings.

He had a deep-laid plan to take over the company.

The tradition of tea ceremonies is deep-rooted in Japanese culture.

The deep-sea is home to many unique and mysterious creatures.

Her fear of spiders is deep-seated and she can't even look at a picture of one.