dig something ↔ up phrasal verb ( see also ↑ dig )
1 . to remove something from the earth using a ↑ spade :
I’ll dig up that plant and move it.
2 . to remove the surface of an area of ground, road etc, or to make holes in it:
They’re digging up the road just outside my flat.
3 . to find hidden or forgotten information by careful searching:
They tried to dig up something from his past to spoil his chances of being elected.