trenail vs trunnel

trenail and trunnel both are nouns.

Word	Noun	Adjective	Verb	Adverb
trenail	Yes	No	No	No
trunnel	Yes	No	No	No

As nouns, trenail and trunnel are synonyms defined as:

trenail and trunnel: a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast

Other synonyms of trenail include treenail.

trenail (noun)	trunnel (noun)
a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast	a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast