"sire" in the noun sense
a title of address formerly used for a man of rank and authority
2. forefather, father, sire
the founder of a family
"keep the faith of our forefathers"
male parent of an animal especially a domestic animal such as a horse
"sire" in the verb sense
1. beget, get, engender, father, mother, sire, generate, bring forth
make (offspring) by reproduction
"Abraham begot Isaac"
"John fathered four daughters"
Source: WordNet® (An amazing lexical database of English)
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