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or tre·nail  (trē′nāl′, trĕn′əl, trŭn′əl) also trun·nel (trŭn′əl)
A wooden peg used as a fastener in building wooden ships or timber-frame buildings.
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.


(ˈtriːneɪl; ˈtrɛnəl) or




(Building) a dowel used for pinning planks or timbers together
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or tre•nail

(ˈtriˌneɪl, ˈtrɛn l, ˈtrʌn l)

a wooden pin that swells when moist, used for fastening timbers.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


A wooden dowel used to prevent a wooden mortise and tenon joint from slipping apart. Trunnels were usually made of a hardwood such as oak or hickory.
1001 Words and Phrases You Never Knew You Didn’t Know by W.R. Runyan Copyright © 2011 by W.R. Runyan
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Treenail - a wooden peg that is used to fasten timbers in shipbuildingtreenail - a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast
nog, peg - a wooden pin pushed or driven into a surface
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The structural support for each sculpture relies solely on the trusses as base and wooden nails or trunnels as fasteners made from the same driftwood.
Traditional wooden pegs (trunnels) were used to connect the truss elements.
In his restorations, he has even replaced old wooden trunnels (the nails or wooden pegs) with like kind in sites where it snows heavily in winter.