Junk mail and Write-up

Junk mail noun - Third-class mail consisting of advertising and often addressed to `resident' or `occupant'.

Write-up and junk mail are semantically related. In some cases you can use "Write-up" instead a noun phrase "Junk mail".

Junk mail and write-up are semantically related. Sometimes you can use "Junk mail" instead a noun phrase "Write-up".