0 a way of sending letters or packages by using a service that deals with them in a special way and makes sure they do not get lost:
You'd better send the check (by) registered mail.
1 a way to send a letter in which you pay extra to have a record of when it was delivered and who received it
2 a way of sending letters or packages by mail using a special service, so that they will be dealt with in a special way and you will receive money if they arrive late, are lost, or damaged:
Please send the parcel by registered mail.
They could include compensation scales in respect of the registered mail services, for example.
A thorough investigation has shown that the document was one of a number of items of registered mail stolen from a train.
I therefore say again that the safeguarding of registered letters must inevitably make registered mail a good deal safer than unregistered mail.
Therefore, competitive market activities such as registered mail are not subject to consumer protection in the same way as other activities.
It is our duty to undertake the collection, transport and delivery of registered mail worth well over £2,000 million a year.
Why is it that registered mail or parcels cannot be sent to the troops overseas, while it can be to civilians?
The only advantage of registered mail is that the barcode on the package allows it to be registered on to a database as soon as it is received.
My information is that this soldier has not been threatened at any time in connection with the inquiries into loss of registered mail in his unit.