To abandon (someone or something)
To admit defeat, capitulate
Become fully taken over by a certain quality, activity, trait, &c.
To relinquish (something)
To execute a trade on behalf of another broker.
To stop or quit (an activity, etc.)
To surrender (someone or something)
To lose hope concerning (someone or something)
To successfully convince (someone) to agree to, accept, or do something, usually through reasoning and verbal influence.