to break the ground into small pieces before planting seeds, building sth, etc.
dig sth up
to break the ground into small pieces before planting seeds, building sth, etc.
They are digging up the football field to lay a new surface.
dig sth up
to remove sth from the ground by digging
An old Roman vase was dug up here last month.
dig sth up
to discover information about sb / sth
Tabloid newspapers love to dig up scandal.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición