Definition of way mail
1 : mail picked up or left off at a way station
2 : mail given to a mail carrier en route from one post office to another
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up way mail? Please tell us where you read or heard it (including the quote, if possible).