A condition for relating or proceeding:
The source or cause:
Work done in preparation
Nitty-gritty is slang for the basic facts, key details or most practical aspects.
Essential facts; basics:
Find another word for elements. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for elements, like: essentials, grammar, initial stage, basic material, fundamentals, abc's, first-principles, basis, beginning, first steps and principles.