The term "hard disc" is commonly used to refer to the primary storage device of a computer or other electronic device. However, there are several other synonyms that can be used interchangeably for this storage device. One such synonym is "hard drive". Another term that is often used in the context of portable electronic devices is "solid state drive" or "SSD". Another option is "storage disk" or simply "disk drive". Additionally, the term "hard disk" can be used to describe the physical spinning disk inside the drive that stores data. Overall, while "hard disc" is a common term, there are plenty of other synonyms available for this essential computer component.