letter of introduction

noun

a letter given by one person to another, as an introduction to a third party

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

diploma, testimony, recognition, passport, description, sanction, voucher, recommendation, deed, testimonial, title, character, endorsement, document, warrant, authorization, papers, missive, card, certificate