Synonyms: bedrock, basic principle, basics, fundamental principle, fundamentals
Definition: principles from which other truths can be derived
Usage: first you must learn the fundamentals; let's get down to basics
Similar words: principle
Definition: a basic truth or law or assumption
Usage: the principles of democracy
Synonyms: bedrock
Definition: solid unweathered rock lying beneath surface deposits of soil
Definition: a lump or mass of hard consolidated mineral matter
Usage: he threw a rock at me