Sign language is a language you express by using your hands and face instead of spoken words. It’s most commonly used by people in the Deaf community. How many types of sign language are there? There ...

The dictionary isn’t forever. Here’s the lowdown on why certain words are not in the dictionary and how they got removed. If you, too, have been left puzzled by words not in the dictionary—even ones ...

Are you greenwashing? How much sleep debt do you have? If you're unfamiliar with those terms you're probably not the only one, but they're now recognized by the most famous online dictionary.