Meaning of the word bedrock in English

What does bedrock mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

bedrock

US /ˈbed.rɑːk/
UK /ˈbed.rɒk/
"bedrock" picture

Noun

1.

the fundamental principles on which something is based

Example:
Honesty is the bedrock of any healthy relationship.
The bedrock of their economy is agriculture.
2.

solid rock underlying loose deposits such as soil or alluvium

Example:
The engineers had to drill down to the bedrock to secure the bridge.
The soil layer is very thin above the bedrock in this area.