junk mail 
noun [mass noun] informal
Unwanted or unsolicited advertising or promotional material received through the post or sent as email: she tossed the junk mail in the bin my inbox is full of junk mail...
- Why is it legal to send junk mail via the post office, but if you send it by email it's suddenly illegal?
- In that world, senders have to pay to send mail: Paper junk mail has to have postage.
- Following an experiment to see just how much junk mail he received in a year, he produced a 70 lb mail mountain.
- live it up
- livelihead
- livelihood
- live like a king (or queen)
- live like a lord
- livelily
- liveliness
- live load
- livelong
- lively
- lively-looking
- liven
- livener
- liveness
- live oak
- live off (or on)
- live off (or on) the fat of the land
- live off the land
- live one
- live one's own life
- live on one's nerves (or one's nerve ends)
- live out of a suitcase
- liver
- live rail
- liverance