0 a way of sending letters or parcels 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 cheque (by) registered post.
1 → registered mail
The same applies to registration: only first-class mail can be sent by registered post.
The first time this was done, things went smoothly, and the package was registered post.
On the other hand, it should be a supplement to the normal registered post.
We have not made it essential in all cases to use registered post.
Yes, when you send it by registered post.
There is no requirement for documents to be sent by recorded or registered post.
Demanding registered post may entail, for large concerns, the spending of £1,000.
The reference ought to have been specifically to uncrossed cheques as these should be sent by registered post.