magnitude

n

1. size, extent, measure, proportions, dimensions; amplitude, volume, mass, bulk.

2. greatness, largeness, bigness; immensity, vastness, enormousness, tremendousness; expanse, boundlessness, infinity.

3. abundance, superabundance, plenitude, plenty, profusion, much, copiousness; quantity, good or great deal, Inf. heap, Inf. pile, Inf. mess; quantities, bags, barrels, tons.

4. importance, consequence, note, mark, distinction; eminence, loftiness, sublimity; fame, glory, renown.

5. of the first magnitude

of the utmost importance, of the utmost significance; important, significant, major, consequential, momentous, world-shaking, earth-shattering; notable, noteworthy, celebrated, prominent, eminent, outstanding, distinguished, esteemed, prestigious; of importance, of significance, of consequence, of moment, of note, of weight.