• synonyms

registered mail

See more synonyms for registered mail on Thesaurus.com
  1. prepaid first-class mail that has been recorded at a post office prior to delivery for safeguarding against loss, theft, or damage during transmission.
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Origin of registered mail

First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018