How to find and replace word in ckeditor

I am having contents or list of contents. 

I m opening an popup to make a word as placeholder. Now i can able to open one more popup after clicking on created placed holder word.

Where i can entered any free text once i click on ok button it will replace all the placeholder words with newly entered word.

Hi Pradip,

Unfortunately, I don't understand what you mean. Do you want a search-and-replace functionality exposed to the user of CKEditor, or do you want to have some automated way of doing that?

Yes, you can say that its search and replacement.

Well, CKEditor should be able to do that, but you probably need to set some flag to allow the user to select it.