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n. A gravestone.

n. A headstone marking the person's grave.

n. The symbol "∎" marking the end of a proof.

v. For a surfboard to stand upright half-submerged in the water (like a tombstone, above) because the surfer is underwater with his or her legrope pulled tight. Often this indicates a surfer in difficulty, either held down by the power of a wave or unconscious and unable to get to the surface.

n. A stone erected over a grave, to preserve the memory of the deceased.

n. A stone placed over a grave, to preserve the memory of the deceased; a sepulchral monument.

n. In heraldry, a bearing representing a sarcophagus or altar-tomb, usually having a large Latin cross on the slab or top.

n. a stone that is used to mark a grave

"The System Drive is comprised of two sections, the core OS, which account for about 20 GB of your first hard drive in the system, the rest of the drive contain what they call the tombstone files, which act as file pointer to the actual locations of all your files."

memorial    stone    monument   

through-stone   

gravestone    headstone   

headstone    gravestone    tomb    sarcophagus    obelisk