sire vs Lord

sire and Lord both are nouns.

Word	Noun	Adjective	Verb	Adverb
sire	Yes	No	Yes	No
Lord	Yes	No	No	No

As nouns, Lord is a hypernym of sire; that is, Lord is a word with a broader meaning than sire:

Other hypernyms of sire include noble, nobleman.

sire (noun)	Lord (noun)
male parent of an animal especially a domestic animal such as a horse	a titled peer of the realm
the founder of a family	terms referring to the Judeo-Christian God
a title of address formerly used for a man of rank and authority

sire (verb)	Lord (verb)
make (offspring) by reproduction