Meanings of obliterate even in English

The truth flashed upon me, in one of those sudden lightning-blazes that seem to obliterate even thought.

After all these weeks of trying to obliterate even the memory of it!...

You ought to obliterate even her name from your memory, and take advantage, if you are wise, of the indulgence I am showing you.'

She fancied that Raymond would already be free, and that her tender attentions would come to entirely obliterate even the memory of his mischance.

Another day and the wind would have obliterated even those faint signs.

It obliterated even the memory of the yellow-haired girl and set her eyes dancing.