6. adopt to select as a basic or required textbook in a course.
Etymology: (1490–1500; (< MF adopter) < L adoptāre=ad-ad - +optāre to opt)
Definition of 'adopt'
Princeton's WordNet
1. (verb)adopt, follow, espouse choose and follow; as of theories, ideas, policies, strategies or plans "She followed the feminist movement"; "The candidate espouses Republican ideals"
2. (verb)adopt, borrow, take over, take up take up and practice as one's own
3. (verb)assume, adopt, take on, take over take on titles, offices, duties, responsibilities "When will the new President assume office?"
4. (verb)assume, acquire, adopt, take on, take take on a certain form, attribute, or aspect "His voice took on a sad tone"; "The story took a new turn"; "he adopted an air of superiority"; "She assumed strange manners"; "The gods assume human or animal form in these fables"
5. (verb)adopt, take in take into one's family "They adopted two children from Nicaragua"
6. (verb)dramatize, dramatise, adopt put into dramatic form "adopt a book for a screenplay"
7. (verb)espouse, embrace, adopt, sweep up take up the cause, ideology, practice, method, of someone and use it as one's own "She embraced Catholicism"; "They adopted the Jewish faith"
1. (verb)adopt to legally become a parent of a child adopting a baby; We've decided to adopt.; their adopted daughter; a couple considering adoption; adoptions of Chinese babies
Definition of 'adopt'
Webster Dictionary
1. (verb)adopt to take by choice into relationship, as, child, heir, friend, citizen, etc.; esp. to take voluntarily (a child of other parents) to be in the place of, or as, one's own child
2. (verb)adopt to take or receive as one's own what is not so naturally; to select and take or approve; as, to adopt the view or policy of another; these resolutions were adopted
Definitions of adopt 
Afrikaans: aanneem
Arabic: يَتَبَنَّى وَلَدَاً
Bulgarian: осиновявам
Brazilian: adotar
Czech: adoptovat
German: adoptieren
Danish: adoptere; tage til sig
Greek: υιοθετώ
Spanish: adoptar
Estonian: lapsendama
Farsi: به فرزند خواندگی پذیرفتن
Finnish: adoptoida
French: adopter
Hebrew: לְאָמֶץ
Hindi: गोद लेना
Croatian: usvojiti
Hungarian: örökbe fogad
Indonesian: mengangkat
Icelandic: ættleiða
Italian: adottare
Japanese: 養子にする
Korean: 양자로 삼다
Lithuanian: įvaikinti
Latvian: adoptēt
Malay: anak angkat
Dutch: adopteren
Norwegian: adoptere, ta til seg
Polish: adoptować
Persian: به فرزند خواندگی پذیرفتن
Pashto: په فرزندی نیول
Portuguese: adoptar
Romanian: a adopta
Russian: усыновлять, удочерять
Slovak: adoptovať
Slovenian: posvojiti
Serbian: usvojiti
Swedish: adoptera
Thai: รับเลี้ยงเป็นลูก
Turkish: evlât edinmek
Taiwanese: 收養
Ukrainian: усиновляти; удочеряти
Urdu: متبنیٰ بنانا
Vietnamese: nhận con nuôi
Chinese: 收养
