Freepost

noun

1. （英国）收件人邮资总付
   (in Britain) a system in which the cost of sending a letter is paid for by the organization receiving it, rather than by the person sending it

1. 免费投邮，收件方付资邮递(英国的一种邮寄制度，寄信人可以在给某些机构寄信时免付邮资，并将freepost一词写在地址栏)
   Freepost is a system in Britain which allows you to send mail to certain organizations without paying for the postage. 'Freepost' is written on the envelope as part of the address.

1. It's FREEPOST, so there's no need for a stamp.
   这是免费邮寄，不用贴邮票。
2. Reply to Publicity Department, FREEPOST, Oxford University Press, Oxford.
   回信免费邮寄至牛津牛津大学出版社宣传部。
3. Return it to: lloyds bank plc, freepost, birmingham.
   将该邮件退至下列地址：伯明翰劳埃德银行，免费邮件。