Langlaufer is a German word that refers to a person who participates in cross-country skiing. In English, there are a few synonyms that can be used to describe someone who enjoys this winter sport. These include cross-country skier, Nordic skier, and ski tourer. Cross-country skier is the most commonly used synonym and refers to someone who skis across open country. Nordic skier is another synonym and is used to describe someone who skiing on a groomed trail. Ski tourer is used to describe someone who is moving through the backcountry and usually has to climb up hills and mountains before skiing back down.