When it comes to staying warm during cold weather, thermals are one of the most popular garments people reach for. However, there are many other words that can be used to describe these versatile pieces of clothing. Some possible synonyms for thermals include "long johns," "base layers," "underwear," "woolies," "long underwear," "wicking layers," "thermal underwear," and "cold weather gear." Each of these terms can be used to describe clothing that is meant to be worn close to the skin, providing insulation and warmth in cold conditions. Whether you call them thermals, long johns, or something else entirely, these garments are a must-have for anyone who wants to stay warm during the winter.