First-class Mail (Noun)
Meaning
Mail that includes letters and postcards and packages sealed against inspection.
Classification
Nouns denoting communicative processes and contents.
Examples
- The postal service processes millions of pieces of first-class mail every day.
- First-class mail typically takes 2-3 days to arrive within the continental United States.
- To qualify as first-class mail, a letter must be properly addressed and stamped.
- Packages that are not first-class mail can be opened by postal inspectors for customs inspection.
- Domestic first-class mail has priority over third-class mail in the sorting process.