Adoption
1.The act or process of establishing a legal relationship between a child and a parent other than the child’s biological parent, thereby entrusting the designated adult with responsibility for raising the child:
Have you considered growing your family through adoption?
2.The act or process of acquiring a pet, especially a stray or abandoned animal from an animal rescue organization:
The shelter sees a rush of dog adoptions every June, when school lets out for summer.
3. the act of accepting, embracing, or starting to use something, as an idea, behavior, characteristic, or principle:
The adoption of a new amendment was delayed by partisan bickering.Her friends and family were surprised by her adoption of European mannerisms and expressions after only one year abroad.