Definitions

1. adjective

extending or lying far inwards from the surface; far from the top, outer edge, or surface; having a great or specified amount of a quality, especially depth of thought or feeling

“The deep ocean is home to many strange creatures.”

2. noun

a person or thing that is skilled or experienced in a particular activity or subject

“He’s a deep thinker and a good problem solver.”

3. verb

to sink or be sunk so as to be completely covered; to become submerged

“The ship will deep at the dock.”

4. adverb

to a great or specified depth; thoroughly

“He’s deep in his research and hasn’t looked up in hours.”