number vs order of magnitude

number

noun
  • A large amount, in contrast to a smaller amount; numerical preponderance. 

  • A sequence of digits and letters used to register people, automobiles, and various other items. 

  • Of a word or phrase, the state of being singular, dual or plural, shown by inflection. 

  • An item of clothing, particularly a stylish one. 

  • An element of one of several sets: natural numbers, integers, rational numbers, real numbers, complex numbers, and sometimes extensions such as hypercomplex numbers, etc. 

  • A marijuana cigarette, or joint; also, a quantity of marijuana bought from a dealer. 

  • Indicating the position of something in a list or sequence. Abbreviations: No or No., no or no. (in each case, sometimes written with a superscript "o", like Nº or №). The symbol "#" is also used in this manner. 

  • Quantity. 

  • A person. 

  • A large amount of damage 

  • A telephone number. 

  • An abstract entity used to describe quantity. 

  • A performance; especially, a single song or song and dance routine within a larger show. 

  • A numeral: a symbol for a non-negative integer. 

verb
  • To label (items) with numbers; to assign numbers to (items). 

  • To total or count; to amount to. 

order of magnitude

noun
  • The class of scale or magnitude of any amount, where each class contains values of a fixed ratio (most often 10) to the class preceding it. For example, something that is 2 orders of magnitude larger is 100 times larger, something that is 3 orders of magnitude larger is 1000 times larger, and something that is 6 orders of magnitude larger is a million times larger, because 10² = 100, 10³ = 1000, and 10⁶ = a million. 

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