- Junk mail is defined as unwanted catalogs, advertisements, coupons and other offerings that are delivered to you via postal mail or email.
An email encouraging you to enter a sweepstakes is an example of junk mail.
A box filled with junk mail.
junk mail definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
advertisements, solicitations, etc. mailed in large quantities, usually by third-class mail
junk mail definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Third-class mail, such as advertisements, mailed indiscriminately in large quantities.
junk mail - Business Definition
The American Heritage® Dictionary of Business Terms Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Unsolicited mail generally sent in huge quantities to “occupant" or “resident" using standard mail.
junk mail - Computer Definition
junk mail - Phrases/Idioms
Third-class mail, such as unsolicited advertisements and flyers, that is sent indiscriminately. For example, While we were on vacation the front hall filled up with junk mail. [c. 1950]