treenail vs trenail

treenail and trenail both are nouns.

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

As nouns, treenail and trenail are synonyms defined as:

treenail 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 treenail include trunnel.

treenail (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