* The earthquake completely obliterated the ancient city. (This uses the literal meaning of "destroy completely").
* Her anger obliterated any chance of a rational discussion. (This uses the figurative meaning of "erase completely").
* The new technology will obliterate the need for traditional manufacturing processes. (This uses the meaning of "replace completely").
Remember, "obliterate" is a strong word that implies total destruction or erasure. Use it carefully!