Question 1

What does "have a change of heart" mean?

Accepted Answer

To completely change one's opinion, decision, or feelings about something.

Question 2

How do you use "have a change of heart" in a sentence?

Accepted Answer

She had a change of heart and decided to forgive him.

Question 3

Is "have a change of heart" formal or informal?

Accepted Answer

"have a change of heart" is register-neutral — appropriate in both casual and formal contexts. Implies a significant reversal of a previous position.