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

Type of: mail

• nonrecreational
• nonrecurring
• nonreflecting
• nonreflective
• nonreligious person
• nonremittal
• nonrenewable
• nonrepetitive
• nonrepresentational
• nonrepresentative
• nonresident
• nonresidential
• nonresilient
• nonresinous
• nonresiny
• nonresistance
• nonresistant
• nonresonant
• nonrestrictive
• nonrestrictive clause
• nonreticulate
• nonretractable
• nonretractile
• nonreturnable
• nonreversible