From Longman Dictionary of Contemporary Englishwin somebody/something ↔ back phrasal verbGETto succeed in getting back something or someone that you had before SYN regain How can I win back her trust? → win→ See Verb table
Examples from the Corpus
win back• Catching up with Pat at the airport, Roy tells her he's determined to win her back.• Ever since the pater told her you might be going to marry Cora-Beth, she's been determined to win you back.• You have a long way to go to win them back.• And it brought back the memories of bouquets and the first Miss World competition she won way back in 1911.• The Kings have won back-to - back games only four times this season and had gone 20 games without repeating the feat.• For winning back-to - back national championships, the Huskers were rather matter-of - fact about it all Tuesday night.• With its victory, Nebraska became the first team since Oklahoma in 1955-56 to win back-to - back unanimous national titles.• Surely she could win him back to her own side. 