1st-class mail

Letters that make 1st-class mail

s, a, l, c, m, t, i, 1 are letters that make '1st-class mail'

mail, MA, la, ail, lass, ma, cl, mA, SS, il, 1st, as, AI, ass, class, ai, AS, IL, LA, As, Cl, La are words within '1st-class mail'

1 possible definitions for '1st-class mail'

Under this definition, 1st-class mail is a noun and has the following properties:

first class, 1st class, first-class mail have the same meaning as '1st-class mail'

'1st-class mail' can be a type of mail.

correspondence is a type of 1st-class mail.