deep‧ly W3 / dipli / 副词

1 used to emphasize that a belief, feeling, opinion etc is very strong, important, or sincere :

Her lies hurt my father deeply.

She is deeply upset.

He loves her deeply.

Teachers are deeply divided on this issue.

deeply held religious beliefs

2 in a serious, careful way :

Most doctors think deeply about what their patients want.

3 a long way into something

deeply into

John kept sinking more deeply into the mud.

4 breathe deeply to take a large breath of air into your lungs

5 sleep deeply to be in a deep sleep, from which it is hard to wake up