trunnel vs trenail

trunnel and trenail both are nouns.

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

As nouns, trunnel and trenail are synonyms defined as:

trunnel and trenail: 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 trunnel include treenail.

trunnel (noun)	trenail (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