Fundamental Principles on Which a Thing Is Based
This page is the CodyCross answer for the clue below from Workshop, Group 2254, Puzzle 5 (Calligraphy).
Question
Fundamental Principles on Which a Thing Is Based
Answer
BEDROCK
Word Meaning:
BEDROCK — (countable, uncountable, geology, mining, engineering, construction) The solid rock found at some depth below the ground surface.
Definitions from Wiktionary.