concept vs recall

concept

noun
  • Understanding retained in the mind, from experience, reasoning and imagination; a generalization (generic, basic form), or abstraction (mental impression), of a particular set of instances or occurrences (specific, though different, recorded manifestations of the concept). 

  • An abstract and general idea; an abstraction. 

  • A description of supported operations on a type, including their syntax and semantics. 

verb
  • to conceive; to dream up 

recall

noun
  • Memory; the ability to remember. 

  • The fraction of (all) relevant material that is returned by a search. 

  • The right or procedure by which the decision of a court may be directly reversed or annulled by popular vote, as was advocated, in 1912, in the platform of the Progressive Party for certain cases involving the police power of the state. 

  • Request of the return of a faulty product. 

  • The right or procedure by which a public official may be removed from office before the end of their term of office, by a vote of the people to be taken on the filing of a petition signed by a required number or percentage of qualified voters. 

verb
  • To bring back (someone) to or from a particular mental or physical state, activity etc. 

  • To remove an elected official through a petition and direct vote. 

  • To call back, bring back or summon (someone) to a specific place, station etc. 

  • To call back (a situation, event etc.) to one's mind; to remember, recollect. 

  • To call again, to call another time. 

  • To request or order the return of (a faulty product). 

  • To withdraw, retract (one's words etc.); to revoke (an order). 

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