boundary line vs mete

boundary line and mete both are nouns.

Word	Noun	Adjective	Verb	Adverb
boundary line	Yes	No	No	No
mete	Yes	No	No	No

As nouns, boundary line and mete are synonyms defined as:

Other synonyms of boundary line include border, borderline, delimitation.

boundary line (noun)	mete (noun)
a line that indicates a boundary	a line that indicates a boundary