Translation guide
To persuade someone to support or like you, often through charm, effort, or argument.
Convincing a person or group to agree with you, join your side, or become favorable.
Literally 'make into an ally'. A natural way to say you won someone over to your side.
Making someone like you, often in a personal or social context.
味方につける focuses on making someone an ally, often through building a relationship. 説得する emphasizes logical persuasion. Use 味方につける when the goal is support, and 説得する when you need to change someone's mind through reasoning.
We need to win over the undecided voters.
I was able to win him over.
To persuade through reasoning. Often used when winning someone over with logical arguments.
I won her over and got her to agree to our plan.
Literally 'grab someone's heart'. Emphasizes winning someone over emotionally or through charm.
His speech won over the audience.
To bring someone into one's camp, sometimes with a nuance of manipulation or strategic inclusion.
He is trying to win over employees from the rival company.
He tried hard to win over her parents.
To gain someone's favor or goodwill. Slightly formal.
He won over his boss with his sincere attitude.
To charm or captivate. Stronger than just being liked; implies fascination.
Her singing voice won over the audience.
It took time to win him over to our side.
It was difficult to persuade him.
Do not translate 'win over' literally as 勝つ (to win) + 上に (over). This makes no sense in Japanese. Use the phrases provided.
She won over the crowd with her humor.