In the given sentence, the phrase "gave in" is close in meaning to "admitted." When someone "gives in" during an argument, it means they acknowledge that the other person's points are stronger or more valid, similar to admitting defeat in a way.
Here's a breakdown to support this:
1. "Admitted" implies accepting the truth or validity of something, which aligns closely with the idea of giving in during an argument.
2. When someone admits defeat or admits that their points are weak, they are essentially giving in to the other person's perspective.
Therefore, in this context, "gave in" is most closely related in meaning to "admitted."