Definitions of adopt:

• verb:   take up and practice as one's own
• verb:   choose and follow; as of theories, ideas, policies, strategies or plans
• verb:   take into one's family

  Example: "They adopted two children from Nicaragua"

• verb:   take on titles, offices, duties, responsibilities
• verb:   take on a certain form, attribute, or aspect

  Example: "He adopted an air of superiority"

• verb:   take up the cause, ideology, practice, method, of someone and use it as one's own

  Example: "They adopted the Jewish faith"

• verb:   put into dramatic form

  Example: "Adopt a book for a screenplay"