Is this a pun?

You ate all of my candy!
No, I only ate more than half of it.

No. A pun would be:

A girl burned in the fire. You could say she was pretty damn " hot ".

I agree with Nadia. I don't think your example is a pun, Sara.

Oh, whoops, I didn't think it was one either. Thanks Nadia, I like your pun.

Yes, this is a pun. A pun is a form of wordplay that exploits multiple meanings of a word or words that sound similar but have different meanings. In this case, the pun is based on the phrase "ate all," which can mean consuming the entirety of something. However, when the person says "No, I only ate more than half of it," they are playing with the word "ate" to suggest that although they did not eat all of the candy, they still ate a significant portion of it.