Junk mail and Thank you

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

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

Thank you noun - A conversational expression of gratitude.

Junk mail and thank you are semantically related. You can use "Junk mail" instead a noun phrase "Thank you".