The term Undervest can refer to a piece of clothing worn under a shirt or sweater. There are several synonyms suitable to replace the word Undervest. These include undershirt, singlet, tank top, camisole, vest, t-shirt, and sleeveless shirt. Each of these words refers to an undergarment worn to cover the torso and often acts as an absorbent layer for sweat. The color or design could vary depending on the material it is made of and the fashion trends of a specific time or location. Among the different terms used, undershirt remains the preferred synonym and often the most used term.