adoption

noun

• The act of adopting.
• The state of being adopted; the acceptance of a child of other parents as if he or she were one's own child.

  "A Chinese baby girl was given away for adoption."

• Admission to an institution, for example a hospital, clinic, mental asylum.

  "the adoption of people into hospitals or monasteries"

• The choosing and making that to be one's own which originally was not so; acceptance

  "the adoption of opinions"

• Transfer between an old system to another (usually better) system.

  "Our company is considering the adoption of a four-day week."

• An act of divine grace by which the redeemed in Christ are admitted to the privileges of the sons of God.
• Ten consecutive wins against an opponent.