verb Download 🔗Share To turn a switch to the "on" position in order to start or enable a device Examples : "Please switch on the light, it's getting dark in here. " electronics device technology machine electric Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To change one's expression or appearance as if by turning a switch Examples : "When the boss entered the room, Sarah could instantly switch on a professional demeanor, hiding her earlier annoyance. " appearance action mind human person character Chat with AIVocabulary GamePractice Reading