turn over a new leaf

Syllable breakdown

Dictionary meaning

to make a deliberate and sincere change in one's behaviour, habits, or attitude, resolving to act better than one has in the past; the expression derives from the image of turning the page of a book to a fresh, unmarked leaf, representing a clean beginning free from previous errors; it is commonly used when someone promises to reform after a period of misconduct, poor performance, or unhealthy living, signalling a genuine commitment to self-improvement