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A network or frame of timber or steel serving as a foundation, usually on ground that is wet or soft.
[French, from Old French, trellis, from greille, gridiron; see grill.]
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.
(Building) an arrangement of beams and crossbeams used as a foundation on soft ground
[C18: from French, from griller to furnish with a grille]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a framework of crossing beams used for spreading heavy loads over large areas; grid.
[1770–80; < French]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.