registered post

British  

noun

1. a Post Office service by which compensation is paid for loss or damage to mail for which a registration fee has been paid Compare recorded delivery

2. mail sent by this service

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Example Sentences

The decision by the Transport Appeal Tribunal for Scotland said the LEZ fines could not be enforced as the council did not serve the fines using recorded or registered post.

From BBC

"You failed to appear in court despite notices sent by a messenger and later through registered post. You are hereby directed to appear before the court personally," the notice stated.

From BBC

Complaints ensue - formal letters are sent by registered post, threatening legal action unless Madame Joliot personally vacuums the few leaves, with her own vacuum cleaner, whenever they might fall.

From BBC

A friend let us borrow one - an original 1915 antique - and sent it registered post.

From BBC

Then she sealed the envelope, rang a bell, and told someone to despatch her letter by registered post.

From Project Gutenberg