What does DEEP mean? - Definitions. net extending far back from the front or outer part; of great horizontal dimension (measured backward from the front or nearer part, mouth, etc ); as, a deep cave or recess or wound; a gallery ten seats deep; a company of soldiers six files deep
Deep Definition Meaning | Britannica Dictionary If you feel or believe something deep down or deep down inside, you feel or believe it completely even if you do not say it or show it to other people