lineage vs blood line

lineage and blood line both are nouns.

Word	Noun	Adjective	Verb	Adverb
lineage	Yes	No	No	No
blood line	Yes	No	No	No

As nouns, lineage and blood line are synonyms defined as:

Other synonyms of lineage include ancestry, blood, bloodline, descent, line, line of descent, origin, parentage, pedigree, stemma, stock.

lineage (noun)	blood line (noun)
inherited properties shared with others of your bloodline	the hereditary derivation of an individual
the hereditary derivation of an individual
a rate of payment for written material that is measured according to the number of lines submitted
the number of lines in a piece of printed material
the kinship relation between an individual and the individual's progenitors