CLEVELAND, Ohio -- So far, my favorite sentence in Dutch is “Ik fiets vaak:” I bike often. I’m also a big fan of “heel veel,” which means very much. I learned both from Duolingo, the addictive ...

Your host in Osaka, Japan, slips on a pair of headphones and suddenly hears your words transformed into flawless Kansai Japanese. Even better, their reply in their native tongue comes through ...

If you stumble when you need to talk to someone in a language that isn’t your native language, do you think: “I just don’t have the knack for languages” or “Maybe I am not cut out to learn another ...