Which word is the most likely definition for the word magnitude?

Hello there.

Question: Which word is the most likely definition for the word magnitude?

Words that you could have are size or extent.
I think the best word to use would have to be size but it depends on which context you are using it in.

In short, Your answer is size.

Hope This Helps You!
Good Luck Studying ^-^

The great size of something. Dictionary.. Enormous amount, my term..lol