Which of the following translates to "spring" in German?

The term "spring" in German translates to "Feder." In mechanical contexts, a spring is a device that stores energy when it is compressed or stretched and releases that energy when allowed to return to its original shape. "Feder" specifically refers to this type of spring, which can be found in various applications such as machinery, vehicles, and toys.

The other terms do not relate to "spring" in this context. "Gewinde" refers to a thread (as in the threading of screws), "Strebe" translates to brace or strut (often used in structural engineering), and "Verzahnung" means gearing or tooth system (related to gear mechanisms). Understanding these distinctions helps clarify the specific terminology used in German engineering and technical language.