Yes, adopt is a Scrabble word!

Verb

1. Choose and follow; as of theories, ideas, policies, strategies or plans

2. Take up and practice as one's own

3. Take on titles, offices, duties, responsibilities

4. Take on a certain form, attribute, or aspect

5. Take into one's family

6. Put into dramatic form

7. Take up the cause, ideology, practice, method, of someone and use it as one's own