Junk and Third-class mail

Junk noun - That which is of low quality or worth.

Third-class mail and junk are semantically related. In some cases you can use "Third-class mail" instead a noun "Junk".

Nearby Words: junking, junked, junker, junky, junkie

Third-class mail noun - Mail consisting of printed matter qualifying for reduced postal rates.

Junk and third-class mail are semantically related. You can use "Junk" instead a noun phrase "Third-class mail".