To unearth something is to dig it up. You could unearth a coffin, or even a tee shirt buried in the bottom of a drawer.

To put something in the earth is to bury it, to unearth it is to take it back out. When digging in the yard you’ll probably unearth creepy-crawlies and, with luck, a lost treasure will surface. To bring anything hidden “into the light” is to unearth it. You can unearth the secret affairs of your lover, you can unearth the lies of a corrupt government, and you may even unearth a child’s secret candy stash from under the mattress.

Definitions of unearth

v recover through digging

dig, dig out, dig up
remove, harvest, or recover by digging
Type of:
bring out, reveal, uncover, unveil
make visible

v bring to light

“The CIA unearthed a plot to kill the President”
Type of:
locate, turn up
discover the location of; determine the place of; find by searching or examining

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