trunnel trunkwork • trunnion · · · Info · Definitions · Synonyms · Characters · · trunnel · · Text Latin · · Script 7 · · Length 2 · · Syllables Definitions · · · (noun) a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast. Synonyms: treenail, trenail. · · Noun Definition 1 Synonyms · · · treenail · · Synonym 1 trenail · · Synonym 2 Characters · · e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075