Meaning & use
bedrock
The solid rock lying beneath the soil, sand, or other loose surface material of the Earth.
See it in a sentence
Engineers drilled through several feet of soil before reaching solid bedrock.
Trust and honesty form the bedrock of any lasting friendship.
A note on using this word
Bedrock is often used figuratively to describe the fundamental principles or values that support something, beyond its literal geological meaning.
Words with a similar meaning
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