Meaning : Not ever. At no time in the past or future.
Example :
I have never been to China.
I shall never forget this day.
Had never seen a circus.
Never on Sunday.
I will never marry you!.
Synonyms : ne'er
Meaning : Not at all. Certainly not. Not in any circumstances.
Example :
Never fear.
Bringing up children is never easy.
That will never do.
What is morally wrong can never be politically right.