A letter that is mailed successively to different recipients, with each recipient being instructed in the body of the letter to mail the letter to another person or persons
A chain letter is a letter, often with a promise of money, that is sent to several people who send copies on to several more people. Chain letters are illegal in some countries. A letter sent to a number of people asking each recipient to send copies with the same request to a specified number of others. The circulation of a chain letter increases in geometrical progression as long as the instructions are followed by all recipients. a letter sent to several people asking them to send a copy of the letter to several more people