Literal:
* The wildfire obliterated the entire forest, leaving behind only charred remains.
* The meteor impact obliterated the ancient city, leaving no trace of its existence.
Figurative:
* The team's victory obliterated any doubts about their ability to win the championship.
* Her laughter obliterated the tension in the room, making everyone feel more at ease.
Informal:
* My boss's criticism obliterated any sense of confidence I had left.
* That argument completely obliterated any chance of us getting along.
Remember, "obliterate" implies complete destruction or erasure, so use it sparingly and with intention.