admit vs concede

admit

verb
  • To concede as true; to acknowledge or assent to, as an allegation which it is impossible to deny (+ to). 

  • To allow to enter; to grant entrance (to), whether into a place, into the mind, or into consideration 

  • To give warrant or allowance, to grant opportunity or permission (+ of). 

  • To allow (someone) to enter a profession or to enjoy a privilege; to recognize as qualified for a franchise. 

  • To allow to enter a hospital or similar facility for treatment. 

  • To be capable of; to permit. In this sense, "of" may be used after the verb, or may be omitted. 

concede

verb
  • To admit or agree to be true; to acknowledge. 

  • To yield or suffer; to surrender; to grant 

  • To yield or make concession. 

  • (of a bowler) to have runs scored off of one's bowling. 

  • To grant, as a right or privilege; to make concession of. 

  • To have a goal or point scored against 

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