What does postcode mean in us?

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Tags

1. #united
2. #senders
3. #along
4. #states
5. #quickly
6. #address
7. #service
8. #introduced
9. #zipping
10. #efficiently
11. #system
12. #postal
13. #travels
14. #suggest
15. #acronym
16. #chosen
17. #improvement