You can look up words, use it as a thesaurus, or even install translation glossaries. The Dictionary app is for reference only. Others will rely on the operating system’s native spell check feature. Some apps like Microsoft Word come with their own dictionary. It’s important to realize this is not necessarily the dictionary that apps use to spell check words in documents. Just hit Cmd + Space and start typing 'Dictionary,' then hit Enter. The easiest way to access it is via Spotlight. Here’s a step-by-step guide on how to add a new dictionary to your Mac.Īll Mac computers come with the Dictionary app preinstalled. Even if you can’t speak two languages, adding more dictionaries is an excellent way to help you learn. If you’re one of the 3.5 billion people who are fluent in multiple languages, you will presumably want to add multiple languages to your Mac’s Dictionary app.