1. greatness of size: greatness of size, volume, or extent computing the magnitude of heavenly bodies
2. importance: the importance or significance of something the magnitude of the discovery
3. status: great personal importance or status a baseball star of unrivaled magnitude
4. geology measure of earthquake size: a measure of the energy of an earthquake, specified on the Richter scale
5. mathematics number assigned to mathematical quantity: a numerical value that describes the amount of something, usually expressed in terms of a multiple of standard units, or the item measured in this way
6. astronomy brightness of astronomical object: a numerical measure of the apparent brightness of an astronomical object, on a scale in which a lower number represents greater brightness
