credit vs refer

credit

verb
  • To bring honour or repute upon; to do credit to; to raise the estimation of. 

  • To believe; to put credence in. 

  • To acknowledge the contribution of. 

  • To add to an account. 

noun
  • Reliance on the truth of something said or done; faith; trust. 

  • A source of value, distinction or honour. 

  • A person's credit rating or creditworthiness, as represented by their history of borrowing and repayment (or non payment). 

  • A unit of currency used in a fictional universe or timeframe. 

  • The time given for payment for something sold on trust. 

  • Written titles and other information about the TV program or movie shown at the beginning and/or end of the TV program or movie. 

  • Acknowledgement of a contribution, especially in the performing arts. 

  • An addition to certain accounts; the side of an account on which payments received are entered. 

  • A reduction in taxes owed, or a refund for excess taxes paid. 

  • A nominal unit of value assigned outside of a currency system. 

  • Recognition for having taken a course (class). 

  • A course credit, a credit hour – used as measure if enough courses have been taken for graduation. 

  • Recognition, respect and admiration. 

  • A privilege of delayed payment extended to a buyer or borrower on the seller's or lender's belief that what is given will be repaid. 

refer

verb
  • To direct the attention of (someone toward something) 

  • To point to either a specific location in computer memory or to a specific object. 

  • To mention (something); to direct attention (to something) 

  • To submit to (another person or group) for consideration; to send or direct elsewhere. 

  • To make reference to; to be about; to relate to; to regard; to allude to. 

  • To place in or under by a mental or rational process; to assign to, as a class, a cause, source, a motive, reason, or ground of explanation. 

  • Required to resit an examination. 

  • To be referential to another element in a sentence. 

noun
  • A blurb on the front page of a newspaper issue or section that refers the reader to the full story inside the issue or section by listing its slug or headline and its page number. 

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