"Make productive" is a common phrase used to describe the act of increasing efficiency, output, or utility. However, there are several synonyms that can be used to describe this process. One such synonym is "streamline," which refers to simplifying or optimizing a process. Another synonym is "enhance," which suggests improving or adding value to something. "Maximize" is also a suitable synonym, meaning to increase to the fullest extent possible. "Optimize" is another synonym that emphasizes improving efficiency by making the most of available resources. Lastly, "boost" is a synonym that suggests increasing strength, quantity, or size. Whichever synonym is used, the end goal remains the same: to improve productivity.