tree trunk vs bole

tree trunk and bole both are nouns.

Word	Noun	Adjective	Verb	Adverb
tree trunk	Yes	No	No	No
bole	Yes	No	No	No

As nouns, tree trunk and bole are synonyms defined as:

tree trunk and bole: the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber

Other synonyms of tree trunk include trunk.

tree trunk (noun)	bole (noun)
the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber	the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber
	a soft oily clay used as a pigment (especially a reddish brown pigment)