underneath
/ʌndəˈniθ/
noun
Meaning
The lower surface or part of something.
"The underneath of the aircraft was painted blue."
A background radio sound track played during a specific announcement or program.
adjective
Meaning
Under, lower.
"You can have the underneath bunk."
adverb
Meaning
Below; in a place beneath.
On the underside or lower face.
preposition
Meaning
Under, below, beneath.
"Underneath the water, all was calm."
Under the control or power of.
"There was little freedom underneath the jackboot."