verb🔗ShareTo turn a switch to the "on" position in order to start or enable a device"Please switch on the light, it's getting dark in here. "electronicsdevicetechnologymachineelectricChat with AIVocabulary GamePractice Reading
verb🔗ShareTo change one's expression or appearance as if by turning a switch"When the boss entered the room, Sarah could instantly switch on a professional demeanor, hiding her earlier annoyance. "appearanceactionmindhumanpersoncharacterChat with AIVocabulary GamePractice Reading
