单击文本中的某个单词时创建弹出框

I am currently working on making a textbook into a website for my teacher and I have run into a problem. I have a div that contains text in a foreign language. Some, but not all of these words are going to be click-able which will result in a pop up box appearing with the word's translation. I do not know how to create something like this.I am currently working on making a textbook int