1. the property of relative size or extent (whether large or small)

- they tried to predict the magnitude of the explosion

- about the magnitude of a small pea

Definition categories: attribute, property

2. a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10

Definition categories: link, ratio

3. relative importance

- a problem of the first magnitude

Definition categories: attribute, importance