descent vs lineage

descent and lineage both are nouns.

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

As nouns, lineage is a hypernym of descent; that is, lineage is a word with a broader meaning than descent:

Other hypernyms of descent include ancestry, derivation, filiation.

As nouns, descent and lineage are synonyms defined as:

As nouns, descent and lineage are synonyms defined as:

descent and lineage: the kinship relation between an individual and the individual's progenitors

Other synonyms of descent include filiation, line of descent.

descent (noun)	lineage (noun)
the act of changing your location in a downward direction	inherited properties shared with others of your bloodline
properties attributable to your ancestry	the hereditary derivation of an individual
a movement downward	a rate of payment for written material that is measured according to the number of lines submitted
the hereditary derivation of an individual	the number of lines in a piece of printed material
a downward slope or bend	the kinship relation between an individual and the individual's progenitors
the kinship relation between an individual and the individual's progenitors