dig down

bore bulldoze burrow clean discover dredge drill enter excavate exhume go into gouge harvest penetrate scoop search shovel sift uncover unearth

channel deepen depress drive grub hoe investigate mine pierce pit probe produce quarry root rout sap spade till tunnel undermine

break up concave fork out root out scoop out turn over

bury cover fill

delve find go into retrieve search sift uncover unearth

expose extricate inquire probe prospect research root

bring to light come across come up with look into search high and low shake down turn inside out turn upside down