Meaning of “unearth” - Learner’s Dictionary

unearth

verb [ T ] uk us /ʌnˈɜːθ/
FIND BY DIGGING

to find something in the ground:

[ often passive ] Thousands of dinosaur bones have been unearthed in China.
FIND

to find something that has been secret or hidden:

Reporters unearthed evidence of criminal activity.

(Definition of “unearth” from the Cambridge Learner’s Dictionary © Cambridge University Press)