Is the ability to restate what people say in a way that indicates you have understood what they mean.

The correct answer is "paraphrasing".

Paraphrasing refers to the ability of an avid listener to restate or rephrase the words of a speaker or a person to show that one has understood what the person is try to say or teach. Paraphrasing requires an avid listener, in order t fully understand and rephrase statements that have been spoken with understanding and knowledge.

Alloy of metals is the answer