magnitude vs moment

magnitude

noun
  • The absolute or relative size, extent or importance of something. 

  • A measure of the energy released by an earthquake (e.g. on the Richter scale). 

  • A number, assigned to something, such that it may be compared to others numerically 

  • An order of magnitude. 

  • Of a vector, the norm, most commonly, the two-norm. 

  • The apparent brightness of a star, with lower magnitudes being brighter; apparent magnitude 

  • A ratio of intensity expressed as a logarithm. 

moment

noun
  • Weight or importance. 

  • A fit; a brief tantrum. 

  • The smallest portion of time; an instant. 

  • A brief, unspecified amount of time. 

  • A quantitative measure of the shape of a set of points. 

  • A petit mal episode; such a spell. 

  • (As in "X moment") An embarrassing event, supposed to be characteristic of some person, group, or situation. 

  • An infinitesimal change in a varying quantity; an increment or decrement. 

  • A definite period of time, specifically one-tenth of a point, or one-fortieth or one-fiftieth of an hour. 

How often have the words magnitude and moment occurred in a corpus of books? (source: Google Ngram Viewer )