The term "on-off" can be replaced by several synonyms based on the context of use. For example, in reference to a light switch, the term "toggle" can be used. Similarly, for a button, the terms "press and release" or "activate and deactivate" can be used instead of "on-off". Electrical devices, such as machines and appliances, can be described as "switchable" or "alternating". In the world of technology, the term "toggle switch" can also be used to represent the "on-off" function. In summary, the various synonyms for "on-off" are based on the nature of the object or device being discussed.