Word formation 6

B11. different
B12. relaxation
B13. amusement
B14. collection
B15. editions
B16. connection
B17. chosen

B11. satisfactory
B12. undertake
B13. indirect
B14. existence
B15. remark
B16. unknown
B17. invisible
B18. survival

B11. musicians
B12. pianist
B13. unheated
B14. legendary
B15. invitation
B16. vacancy

B11. regularity
B12. attention
B13. agreement
B14. tradition
B15. acceptance
B16. daily