first class
1st class
first-class mail
1st-class mail

The volume of first-class mail fell about half a percent last year and is expected to continue dropping over the next decade.

It had come by first-class mail and was heavily sealed.

They also accounted for some two-thirds of the $32 billion spent on first-class mail.

Last year the service delivered 85.8 billion pieces of first-class mail.

The price is $12 mailed at the book rate or $13 by first-class mail.

Perhaps poor service is the reason, especially for first-class mail.

Now, with first-class mail at 29 cents, we're doing very well.

An example of first-class mail is a typed letter or one written by hand.

In the country as a whole, service improved 4 points, with 87 percent of first-class mail arriving on time.

The proposal does not affect the 32-cent rate for first-class mail that took effect last year.