The antonyms for the phrase "turning the key" could be opening the door, starting the engine or ignition, pushing the on button, switching on, or activating the device. The phrase "turning the key" is usually associated with locking or unlocking a door, starting or stopping an engine, or starting or stopping a machine. In contrast, the antonyms mentioned above, imply the action of opening, activating, or starting a device without the need for a physical key. The antonyms emphasize the importance of convenience and accessibility in modern technology and everyday life. These antonyms are frequently used in the context of electronics, vehicles, and smart homes.