We found 15 dictionaries that define the word express mail:

General (13 matching dictionaries)

1. Express Mail: Merriam-Webster
2. express mail: Collins English Dictionary
3. express-mail, express mail: Vocabulary.com
4. Express Mail: Infoplease Dictionary
5. express-mail, express mail: Dictionary.com
6. Express Mail, Express mail: Wikipedia, the Free Encyclopedia
7. express-mail, express mail: Rhymezone
8. express-mail, express mail: FreeDictionary.org
9. express-mail, express mail: Mnemonic Dictionary
10. express-mail, express mail: TheFreeDictionary.com
11. express mail: Longman Dictionary of Contemporary English
12. Express Mail, Express mail: Merriam-Webster

Art (1 matching dictionary)

13. Glossary of Stamp Collecting Terms (No longer online)

Computing (1 matching dictionary)

14. express mail: Encyclopedia

(Note: See express_mails as well.)

Definitions from Wikipedia (Express mail) ▸ noun:  an expedited mail delivery service for which the customer pays a premium for faster delivery. Opposite: standard mail, regular mail, snail mail ▸ Words similar to express mail ▸ Usage examples for express mail ▸ Idioms related to express mail ▸ Wikipedia articles (New!) ▸ Words that often appear near express mail ▸ Rhymes of express mail ▸ Invented words related to express mail