sire

1 a male human parent his sire had been a renowned Wall Street lawyer Synonyms dad, daddy, old man, pa, papa (also poppa), pater [chiefly British], pop, fatherRelated Words paterfamilias, patriarch; father figure, father image; stepfather

2 a person who establishes a whole new field of endeavor the revered sire of the impressionist movement in art Synonyms author, begetter, creator, establisher, founder, founding father, generator, inaugurator, initiator, instituter (or institutor), originator, fatherRelated Words cocreator, cofounder; conceiver, contriver, designer, deviser, formulator, innovator, introducer, inventor, spawner; builder, maker, producer; developer, pioneer, researcher, researchist; organizer, promoter; encourager, galvanizer, inspiration, inspirerNear Antonyms disciple, follower, pupil, student, supporter