trenail vs treenail

trenail and treenail both are nouns.

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

As nouns, trenail and treenail are synonyms defined as:

trenail and treenail: 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 trunnel.

trenail (noun)	treenail (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