Meaning of deep in English
1. extending far downwards; not shallow
How deep is this lake?
The ocean is deep here.
2. serious
a deep problem
3. having a low sound; not high or shrill
He speaks in a deep voice.
deep red
5. intense
My mother's love for me was very deep.
6. sound
He is a deep[⇔light] sleeper.
He was buried deep.
They dug deep before they found oil.