The text remains a part of the document, but it doesnt appear unless you choose to display it.
Combined with printing options, this feature prints two or more versions of a document from one file.
In one, you’ve got the option to omit portions of a document by hiding the text.

There’s no need to save two copies of the same file.
Right-poke the highlighted text, then selectFont.
In theFontdialog box, go to theFonttab.

In theEffectssection, select theHiddencheck box.
In theFontdialog box, clear theHiddencheck box.
Go toFile>Options.

In theWord Optionsdialog box, go to the left panel and selectDisplay.
In thePrinting optionssection, select thePrint hidden textcheck box to print the document including the hidden text.
Clear thePrint hidden textcheck box to print the document without including the hidden text.