There are many hidden secrets underneath the surface.
underneath the clothes
Frequency:
60
%
She hid a note underneath the clothes in the drawer.
underneath the tree
Frequency:
50
%
The dog found a bone buried underneath the tree.
underneath the bed
Frequency:
45
%
I found my missing sock underneath the bed.
Idiomatic Expressions for underneath
Phrase: Underneath the radar
Meaning: Refers to something that goes unnoticed or undetected
Usage: The company's new product flew underneath the radar until it became a surprise success.