32 keywords in C Language

Auto: automatic variable declaration is generally not used
Double: Declares double-precision variables or functions.
INT: Declares integer variables or functions.
Struct: Declares struct variables or functions.
Break: jump out of the current loop
Else: The Condition Statement denies the branch (used with if)
Long: declares a long integer variable or function.
Switch: Used for the switch statement
Case: switch statement Branch
Enum: Declares the enumeration type.
Register: Declares register variables.
Typedef: Used to get an alias for the data type (of course there are other functions)
CHAR: declare struct variables or functions
Extern: declared variables are declared in other files (or can be seen as referenced variables)
Return: The Return Statement of a subroutine (either with or without parameters)
Union: Declares the Union data type.
Const: declare Read-Only variables
Float: Declares floating point variables or functions.
Short: declare short integer variables or functions
Unsigned: Declares unsigned type variables or functions.
Continue: ends the current cycle and starts the next cycle.
For: a loop statement)
Signed: Declares signed variables or functions.
Void: declares that a function has no return value or no parameter and has no type pointer (basically, these three functions)
Default: "other" branch in the switch statement
Goto: unconditional jump statement
Sizeof: calculates the length of the data type.
Volatile: indicates that variables can be implicitly changed during program execution.
Do: the body of the loop statement.
While: the loop condition of the loop statement
Static: declare static variables
If: Condition Statement