We found 8 dictionaries that define the word third class mail:

General (6 matching dictionaries)

1. third-class mail: Vocabulary.com
2. third-class mail: Dictionary.com
3. third-class mail: Rhymezone
4. third-class mail: FreeDictionary.org
5. third-class mail: Mnemonic Dictionary
6. third-class mail: TheFreeDictionary.com

Art (1 matching dictionary)

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

Computing (1 matching dictionary)

8. third-class mail: Encyclopedia

▸ Words similar to third class mail ▸ Usage examples for third class mail ▸ Idioms related to third class mail ▸ Wikipedia articles (New!) ▸ Words that often appear near third class mail ▸ Rhymes of third class mail ▸ Invented words related to third class mail