secondbornEtymologyFrom second + born.adjBorn as the second child to parent or family.“In the novel Pride and Prejudice, Elizabeth Bennett, the heroine, is her family's secondborn child.”Second of a particular type to be born to a parent or family.“Jane Austen, the secondborn daughter in a family of five boys and two girls, was very close to her sister older Cassandra.”nounThe second child to be born to a parent or family.“My secondborn is more outgoing.”