lineage vs bloodline

lineage and bloodline both are nouns.

Word	Noun	Adjective	Verb	Adverb
lineage	Yes	No	No	No
bloodline	Yes	No	No	No

As nouns, bloodline is a hyponym of lineage; that is, bloodline is a word with a more specific, narrower meaning than lineage:

Other hyponyms of lineage include descent, extraction, origin, pedigree.

As nouns, lineage and bloodline are synonyms defined as:

lineage (noun)	bloodline (noun)
inherited properties shared with others of your bloodline	ancestry of a purebred animal
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