Definition of "grapevine" []

• A vine on which grapes grow. (noun)
• The informal transmission of information, gossip, or rumor from person to person. (noun)
• A usually unrevealed source of confidential information. (noun)

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.

• "Rachel, most of these peer workshops are by invitation, so the grapevine is the way to learn about them."
• ""Watch me!" cried Ted, as he began doing what he called a grapevine twist."
• "PS – Word on the Hip-O grapevine is that a long-awaited (I knew of it being in the planning stages a year ago!) “Supremes Lost & Found” is coming later this month or at the beginning of February."