What are Keywords?

Keywords

Keywords in C language are explicitly reserved words i.e. we can't use these variables as they have predefined meaning.  

There are 32 keywords in C. 

They are:

1. auto
2. const
3. double
4. float
5. int
6. short
7. struct
8. unsigned
9. break
10. continue
11. else
12. for
13. long
14. signed
15. switch
16. void
17. case
18. default
19. enum
20. goto
21. register
22. sizeof
23. typedef
24. volatile
25. char
26. do
27. extern
28. if
29. return
30. static
31. union
32. while

Summary: We can't use keywords as variables as they have predefined meaning.