Dictionary.com
Thesaurus.com
Synonyms

surface mail

American  

noun

  1. the system, especially a government postal system, of sending mail by truck, train, or boat, as opposed to airmail.

  2. mail sent by this system.


surface mail British  

noun

  1. mail transported by land or sea Compare airmail

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The distinction resembles the difference between a cell phone conversation at the speed of light and the exchange of letters through surface mail.

From Scientific American