1. brain

2. ruler

3. scanner

4. light

5. granddaughter

6. razor

7. mailman|postman

8. Christmas

9. headphones
headset

10. policeman

11. motorcycle

12. ticket

13. student

14. cat

15. character

16. fuel tank

17. class (-s)
lesson (-n)

18. swimming pool

19. key (piano)

20. icon

21. training

22. explanation

23. challenge

24. plant (flower)

25. lawyer

26. belly

27. builder

28. animal

29. button

30. snack

31. calendar

32. sugar

33. fresh juice

34. secretary

35. bone

36. voice recorder

37. book

38. try

39. date

40. plastic