From Longman Dictionary of Contemporary Englishturn the cornerturn the cornerIMPROVEto start to become successful or to feel better or happier, after a time when you have been unsuccessful, ill, or unhappy We knew Dad had turned the corner when he started complaining about the hospital food. → corner
Examples from the Corpus
turn the corner• Their car had hardly turned the corner when the mob arrived and smashed the house to pieces.• A superior actor might have turned the corner on this film.• Willie caught sight of them as he turned the corner.• I watched him until he turned the corner.• He turned the corner toward home and heard the familiar, booming bark from the garage.• He faced Main Street, where a black hearse turned the corner.• I ran on down the road and when I turned the corner I was at the shops.• I thought by January we would turn the corner. 