What does the word adoption mean?

Usage examples for adoption

  1. So I am fitting them for adoption as quickly as possible, and searching for the homes. – Dear Enemy by Jean Webster
  2. He opposed the adoption of the constitution before the Convention. – Nooks and Corners of the New England Coast by Samuel Adams Drake
  3. There are strong doubts whether the adoption of those proposals would provide a satisfactory solution. – Report of the Special Committee on Moral Delinquency in Children and Adolescents The Mazengarb Report (1954) by Oswald Chettle Mazengarb et al.