1. extending far down from the top or surface
2. extending far inward from the outside
3. intense or extreme in degree

1. to a great depth; far down or in

1. the ocean or a deep part of the sea
Usage: literary

Examples

• The lake is very deep in the center.
• She took a deep breath before diving.
• He fell into a deep sleep after the long journey.
• The professor asked deep questions about the novel.
• His deep voice echoed through the hall.
• The ship sailed into the deep.
• They dug deep into the ground to find water.