First-class mail: Definition with First-class mail Pictures and Photos

Definition of First-class mail

1. Noun. Mail that includes letters and postcards and packages sealed against inspection.

Exact synonyms: 1st Class, 1st-class Mail, First Class
Generic synonyms: Mail
Specialized synonyms: Correspondence

Lexicographical Neighbors of First-class Mail

firns
firrier
firriest
firring
firrings
firry
firry
firs
first
first

first-aid kit
first-aid station
first-class
first-class
first-class honours degree
first-class mail (current term)
first-come-first-serve(p)
first-degree burn
first-nighter
first-order correlation

first-order kinetics
first-order reaction
first-place finish
first-rate
first-rater
first-set rejection
first-string
first-year
firstborn
firstborns

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