deep dive

/D IY1 P D AY0 V/
noun
  1. 1

    (idiomatic, often with into or on) An in-depth examination or analysis of a topic.

  2. 2

    (underwater diving) An act of deep diving.

  3. 3

    Used other than figuratively or idiomatically: see deep, dive.

verb
  1. 1

    Alternative form of deep-dive. [(intransitive) To engage in deep diving.]