We have put together a list of words that are similar to MAGNITUDE.

15 Alternative Words Similar to magnitude

1 Importance Noun      Synonym Words Like Importance
2 Property Noun      Synonym Words Like Property
3 Proportion Noun      Hyponym Words Like Proportion
4 Strength Noun      Hyponym Words Like Strength
5 Intensity Noun      Hyponym Words Like Intensity
6 Multiplicity Noun      Hyponym Words Like Multiplicity
7 Bulk Noun      Hyponym Words Like Bulk
8 Mass Noun      Hyponym Words Like Mass
9 Amount Noun      Hyponym Words Like Amount
10 Dimension Noun      Hyponym Words Like Dimension
11 Degree Noun      Hyponym Words Like Degree
12 Order Noun      Hyponym Words Like Order
13 Extent Noun      Hyponym Words Like Extent
14 Volume Noun      Hyponym Words Like Volume
15 Muchness Noun      Hyponym

2 examples of magnitude

1 an affair of magnitude
2 about the magnitude of a small pea

10 definitions of magnitude

1 Extent of dimensions; size; -- applied to things that have length, breadth, and thickness.
2 That which has one or more of the three dimensions, length, breadth, and thickness.
3 Anything of which greater or less can be predicated, as time, weight, force, and the like.
4 Greatness; grandeur.
5 Greatness, in reference to influence or effect; importance.
6 See magnitude of a star, below.
7 the property of relative size or extent (whether large or small)
8 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
9 relative importance
10 Greatness of rank or position: "such duties as were expected of a landowner of his magnitude” ( Anthony Powell).
We get our data from many different dictionaries across the web:
Wordnik, Wiktionary, Century, American Heritage, Gcide