acceptance vs challenge

acceptance

noun
  • An instance of that act. 

  • An assent and engagement by the person on whom a bill of exchange is drawn, to pay it when due according to the terms of the acceptance; the bill of exchange itself when accepted. 

  • The state of being accepted. 

  • A list of horses accepted as starters in a race. 

  • Synonym of etendue. 

  • The usual or accepted meaning of a word or expression. 

  • The act of accepting; the receiving of something offered, with acquiescence, approbation, or satisfaction; especially, favourable reception; approval. 

  • An agreeing to the action, proposals, or terms of another by some act which results in the conclusion of a legally binding contract; the reception or taking of a thing bought as that for which it was bought, or as that agreed to be delivered, or the taking of possession of a thing as owner. 

  • Belief in something; agreement, assent. 

  • The act of an authorized representative of the government by which the government assents to ownership of existing and identified supplies, or approves specific services rendered, as partial or complete performance of a contract. 

challenge

noun
  • An antagonization or instigation intended to convince a person to perform an action they otherwise would not. 

  • The act of appealing a ruling or decision of a court of administrative agency. 

  • A bid to overcome something. 

  • The act of seeking to remove a judge, arbitrator, or other judicial or semi-judicial figure for reasons of alleged bias or incapacity. 

  • An act of seeking to have a certain person be declared not legally qualified to vote, made when the person offers their ballot. 

  • The act of a sentry in halting a person and demanding the countersign, or (by extension) the action of a computer system demanding a password, etc. 

  • A summons to fight a duel; also, the letter or message conveying the summons. 

  • A difficult task, especially one that the person making the attempt finds more enjoyable because of that difficulty. 

  • An attempt to take possession; a tackle. 

  • An attempt to have a work of literature restricted or removed from a public library or school curriculum. 

  • The opening and crying of hounds upon first finding the scent of their game. 

  • A judge's interest in the result of a case, constituting grounds for them to not be allowed to sit the case (e.g., a conflict of interest). 

verb
  • To question or demand the countersign from (one who attempts to pass the lines). 

  • To dare (someone). 

  • To invite (someone) to take part in a competition. 

  • To be difficult or challenging for. 

  • To call something into question or dispute. 

  • To object to the reception of the vote of, e.g. on the ground that the person is not qualified as a voter. 

  • To take (a final exam) in order to get credit for a course without taking it. 

  • To make a formal objection to a juror. 

  • To dispute (something). 

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