I believe we all have ever used Wikipedia and perhaps we often use it. And usually, we will use our web browser to search the entry of Wikipedia, won't we?
But using our Mac, it is not necessary for us to open web browser just to look for the entry in Wikipedia. It's because we can use our Dictionary.app to browse through Wikipedia entries.
But initially, you will need to enable Wikipedia as one of your Dictionary sources. Here are the steps to do it:
Of course with similar steps as above, you can also enable Thesaurus or other dictionaries as the source.
Some articles taken from our resource base, tightly related to current article, to empower you with more knowledge on tweaking the most out of your Mac.