noun (1), often attributive
\ ˈmāl How to pronounce mail (audio) \

Definition of mail

 (Entry 1 of 4)

1a : material (such as letters and packages) sent or carried in a postal system sorting through the mail also : similar material distributed within an organization interoffice mail
c : a conveyance that transports mail
2 : a nation's postal system a letter sent through the mail often used in plural packages sent through the mails
3 chiefly Scotland : bag, wallet


mailed; mailing; mails

Definition of mail (Entry 2 of 4)

transitive verb

: to send by mail : post entry 4


noun (2)

Definition of mail (Entry 3 of 4)

1 : armor made of metal links or sometimes plates
2 : a hard enclosing covering of an animal (such as a tortoise)


noun (3)

Definition of mail (Entry 4 of 4)

chiefly Scotland

Keep scrolling for more

Other Words from mail


mailability \ ˌmā-​lə-​ˈbi-​lə-​tē How to pronounce mail (audio) \ noun
mailable \ ˈmā-​lə-​bəl How to pronounce mail (audio) \ adjective

Noun (2)

mailed \ ˈmāld How to pronounce mail (audio) \ adjective

Synonyms for mail

Synonyms: Verb

Visit the Thesaurus for More 

Examples of mail in a Sentence

Verb if you don't mail that letter soon, it's going to arrive late

First Known Use of mail

Noun (1)

13th century, in the meaning defined at sense 3


1827, in the meaning defined above

Noun (2)

14th century, in the meaning defined at sense 1

Noun (3)

before the 12th century, in the meaning defined above

History and Etymology for mail

Noun (1)

Middle English male, from Anglo-French, of Germanic origin; akin to Old High German malaha bag

Noun (2)

Middle English maille metal link, mail, from Anglo-French, from Latin macula spot, mesh

Noun (3)

Middle English male, maille, from Old English māl agreement, pay, from Old Norse māl speech, agreement; akin to Old English mǣl speech

Keep scrolling for more

Learn More About mail

Time Traveler for mail

Time Traveler

The first known use of mail was before the 12th century

See more words from the same century

Dictionary Entries Near mail




See More Nearby Entries 

Statistics for mail

Cite this Entry

“Mail.” Dictionary, Merriam-Webster, Accessed 28 Jul. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for mail



English Language Learners Definition of mail

chiefly US : to send (something, such as a letter or package) by mail


\ ˈmāl How to pronounce mail (audio) \

Kids Definition of mail

 (Entry 1 of 3)

1 : letters and packages sent from one person to another through the post office
2 : the system used for sending and delivering letters and packages


mailed; mailing

Kids Definition of mail (Entry 2 of 3)

: to send letters and packages through the post office



Kids Definition of mail (Entry 3 of 3)

: a fabric made of metal rings linked together and used as armor

More from Merriam-Webster on mail

Nglish: Translation of mail for Spanish Speakers

Britannica English: Translation of mail for Arabic Speakers


Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
True or False

Test your knowledge - and maybe learn something along the way.

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!