What is 7 if 2 is double?

Answer 1

Well, let's imagine a happy little number 2. If we double 2, we get 4. Now, if we take that cheerful number 4 and double it again, we get 8. So, 7 is just a little bit less than 8, but still a beautiful number in its own right.

Answer 2

The word pertaining to "seven times as much", such that double means "twice as much" is septuple.