what are three meanings of A in scarlet letter?

1. Adulterer (she had a child out of wedlock)

2. Angel (As a meteor falls, an "A" appears in the sky, Winthrop dies at the same time and the Puritans the puritans think the A means an angel has taken this guy to heaven.)

3. Able (Hester bares her pious suffering with grace and dignity. She helps the poor and stays out of everybody's way.Many Puritans like this new defeated and meek Hester and decide to relabel her.)