DEEP - Definition Translations | Collins English Dictionary If something is deep, it extends a long way down from the ground or from the top surface of something [ ] 2 A deep container, such as a closet, extends or measures a long distance from front to back [ ] 3 You use deep to emphasize the seriousness, strength, importance, or degree of something [emphasis] [ ]
Deep - definition of deep by The Free Dictionary deep - difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge; "the professor's lectures were so abstruse that students tended to avoid them"; "a deep metaphysical theory"; "some recondite problem in historiography"
Deep Definition Meaning | Britannica Dictionary DEEP meaning: 1 : having a large distance to the bottom from the surface or highest point often used figuratively; 2 : going far inward from the outside or the front edge of something