Years before Slack was even a glimmer in its founder's eye, Wave was Google’s ambitious attempt to create a comprehensive collaboration platform, a big, messy mashup of IM, email, video chat, and social networking. And despite huge demand during its initial invite-only release, it never picked up enough steam to warrant more development, which many attribute to its chaotic and overly complex user interface.
For roughly two years, Google ran its very own standalone online dictionary -- a spinoff of Google Translate (still a thing!) -- which sourced definitions via the Collins English Dictionary. Like most dictionaries, it wasn’t exactly a runaway hit, and Google eventually merged it into the search engine itself. Now, preceding any word with “define” shoots you the definition in the results.