grape·vine (gr?p?v?n?)n.1. A vine on which grapes grow.2. The informal transmission of information, gossip, or rumor from person to person: I heard through the grapevine that she has a new job. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.grapevine (??re?p?va?n) n1. (Plants) any of several vitaceous vines of the genus Vitis, esp V. vinifera of E Asia, widely cultivated for its fruit (grapes): family Vitaceae2. informal an unofficial means of relaying information, esp from person to person3. (Wrestling) a wrestling hold in which a wrestler entwines his own leg around his opponent’s and exerts pressure against various jointsCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014grape?vine (?gre?p?va?n) n. 1. a vine that bears grapes. 2. a person-to-person method of spreading gossip or information. [1645?55] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.