You can look at the words in front and behind it, because they refer to this big word. You may find a synonym of the word or a close reference. So for example in this sentence: I was excited and ambitious to learn about cars today. So this is a easy example. You can use exited to define ambitious if you dont know what ambitious means.
Answer: Restate the main points, without giving out any main details.
Explanation:
While restating, you shouldn't restate your thesis, or theme. That would be simply repetitive. You also should not push your ideas forward, or, give evidence. The sentence itself should be considered a well-fit conclusion, as to not cut off your thoughts. These are every teacher's guidelines for concluding sentences of every writing type, excluding narratives.