There are various synonyms for the term "tube sock" that you can use, particularly when referring to this type of hosiery. Some popular alternatives to tube socks include knee-high socks, ankle socks, crew socks, and athletic socks. Knee-high socks are often a bit longer than tube socks, reaching up to the knee, while crew socks are a shorter style that come to just above the ankle. Ankle socks are another shorter style that come to the ankle and are popular for athletic activities. Athletic socks are also a great choice, often featuring extra cushioning and moisture-wicking properties. So, if you're in need of socks for any occasion, there are many synonym options to choose from!