Definition of "dm" [dm]

• Decimeter (abbreviation)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Delta Air Lines agents with special Twitter training have been rotating shifts to help travelers wired enough to know how to "dm," or send a direct message."
• "Wednesday, May 6 2009 nice fake first couple comments. only adds to the ‘sentiment’ Om conveys in the article. w/$14 mill they should be miles from where they are which is likely the reason for the CEO changes. good luck though. my limited exposure to tokbox was pretty positive. dm"
• "I'll send you a dm on twitter. btw - thank you for that stance about changing color - a lot of us are in agreement with you."