When working with longer texts, it is not unusual to have to change a common term because it has been written incorrectly or because it is no longer up-to-date. Common word processing software packages like MS Word have a “search and replace” function so that you do not have to go through the whole text and change everything by hand.
There is a similar tool for MediaWiki users called ReplaceText. This is a small but powerful MediaWiki extension allowing you to search for specific combinations of characters, whether it is text, code or spaces, and to replace them both in wiki articles and in article titles. It is also possible to use complex algorithms which recognise patterns in the form of regular expressions so that you can undertake more sophisticated search-and-replace tasks.