Keywords :-

A keyword is a reserved word. All keywords have fixed meaning that means we cannot change. Keywords serve as basic building blocks for program statements. All keywords must be written in lowercase. A list of 32 keywords in c language is given below: 

auto break case char 

const continue default do 

double enum else extern 

float for goto if 

int long return register 

signed short static sizeof 

struct switch typedef union 

unsigned void volatile while