cost vs estimate

cost

noun
  • A negative consequence or loss that occurs or is required to occur. 

  • Quality; condition; property; value; worth; a wont or habit; disposition; nature; kind; characteristic. 

  • Amount of money, time, etc. that is required or used. 

  • A cottise. 

verb
  • To cause something to be lost; to cause the expenditure or relinquishment of. 

  • To require to be borne or suffered; to cause. 

  • To calculate or estimate a price. 

  • To incur a charge of; to require payment of a (specified) price. 

estimate

noun
  • An upper limitation on some positive quantity. 

  • A rough calculation or assessment of the value, size, or cost of something. 

  • A document (or verbal notification) specifying how much a job is likely to cost. 

verb
  • To judge and form an opinion of the value of, from imperfect data. 

  • To calculate roughly, often from imperfect data. 

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