Letter of introduction and Letter of credit

Letter of credit and letter of introduction are semantically related in means of verifying identity topic. In some cases you can use "Letter of credit" instead a noun phrase "Letter of introduction".

Letter of credit noun - A document issued by a bank that guarantees the payment of a customer's draft; substitutes the bank's credit for the customer's credit.

Letter of introduction and letter of credit are semantically related in means of verifying identity topic. You can use "Letter of introduction" instead a noun phrase "Letter of credit".