Can you please fill in the blank?
Hot is to heat as cold is to....
In other words, what is the noun for "cold"?
If you were looking for a verb, then I suggest chill
You can heat something and you can chill something
You cannot cold something
I personally prefer chill to cool in this situation - in my opinion cold is to the verb cool as hot is to the verb warm.
as opposed to
To cool is the verb that you want. Hot is to heat as cold is to cool. And there is an answer from a really chilled out cool dude.