1》 a disc marked to show the time on a clock or indicate a reading or measurement by means of a pointer.
↘a disc with numbered holes on a telephone, turned to make a call.
↘a disc turned to select a setting on a radio, cooker, etc.
2》 Brit. informal a person's face.
■ verb ( ~s , ~ling , ~led ; US ~s , ~ing , ~ed ) call (a telephone number) by turning a ~ or using a keypad.
↘indicate or regulate by means of a ~ect
↘( ~ something up ) gain access to a service using a telephone line.
ME: from med. L. ~e 'clock ~', based on L. dies 'day'.