Yiddish is more common than you might think. Schlep, nosh, and, of course, oy, among other words, have made their way into American English. But the language has been in a decline since its height less than a century ago, when it was spoken by an estimated 13 million Jews. Today, a resurgence is underway, not only of the language but also of Yiddish literature, theater, and music. This group, called Tuesday Schmooze-day, part of the International Association of Yiddish Clubs, meets every week for an opportunity to speak the language and keep it alive.