Synonyms for scarlet letter

I suppose it is generally agreed that "The Scarlet Letter" is his chef-d'œuvre.

What was the efficacy of the whipping or the "scarlet letter," we are not informed.

The scarlet letter was her passport into regions where other women dared not tread.

“Thy mother is yonder woman with the scarlet letter,” said the seaman.

He again extended his hand to the woman of the scarlet letter.

“I have left thee to the scarlet letter,” replied Roger Chillingworth.

But in good earnest now, mother dear, what does this scarlet letter mean?

It was the scarlet letter in another form; the scarlet letter endowed with life!

An admirable illustration of this method is “The Scarlet Letter.”

In "The Scarlet Letter," we have the sin of concealment and its consequences.