illustrate VS illuminate

昨天在单词群里面讲luc这个词根时，大家在讨论illustrate和illuminate这两个词的含义区别，今天我给大家分析一下。
☆我们先来看韦氏词典对于illustrate的解释：
transitive verb：
1.to light up
2.to make illustrious
3.to make clear : clarify；to make clear by giving or by serving as an example or instance；to provide with visual features intended to explain or decorate <illustrate a book>
4.to show clearly : demonstrate；
intransitive verb :
to give an example or instance；
我们再来看看例句：
He illustrated his lecture with stories of his own experiences in the field.
Please give a few examples to illustrate your point.
The results illustrate how important it is to wear your seatbelt.
The students will write and illustrate their own stories.
所以大概意思就是用例子或者图表把一件事情或者一个观点解释清楚这个动作就是“illustrate”.
我们在英语写作，比如六级或者雅思小作文，碰到图表题时，开头都是the chart illustrates ……
​ ☆下面我们再来看illuminate这个单词：
​1.brightened with light
2.intellectually or spiritually enlightened
例