1. Mail that includes letters and postcards and packages sealed against inspection
   - first class, first-class mail, 1st-class mail

Type of: mail

• moderator
• moderatorship
• modern
• modern ballet
• modern dance
• Modern English
• modern era
• modern font
• Modern Greek
• Modern Hebrew
• modern jazz
• modern man
• modern times
• modern world
• modern-day
• moderne
• modernisation
• modernise
• modernised
• modernism
• modernist
• modernistic
• modernity
• modernization
• modernize