heart and soul Meaning, Definition & Usage

  1. noun the choicest or most essential or most vital part of some idea or experience
    kernel; substance; center; centre; nitty-gritty; essence; sum; meat; heart; pith; nub; core; inwardness; marrow; gist.
    • the gist of the prosecutor's argument
    • the heart and soul of the Republican Party
    • the nub of the story
  2. adverb with complete faith
    body and soul.
    • she was with him heart and soul

WordNet