When it comes to synonyms for the word "snowmobile," there are a few options available. One alternative is the phrase "snow machine," which is commonly used in some areas of North America. Another term that's frequently used is "snow scooter," which typically refers to a smaller, lighter snowmobile that's designed for recreational use. Additionally, some people refer to snowmobiles as "snowcats," a term that's more commonly used in Europe and other parts of the world. Other possible synonyms for the word "snowmobile" include "snowmobile sled," "snowmobile vehicle," and "ski-doo," which is actually a brand name but has become a generic term for snowmobiles in some regions.