Come down is a commonly used phrase that means to descend or move from a higher level to a lower one. Some synonyms of "come down" that you can use to add variety to your writing or conversation are "descend", "drop", "lower", "fall", "sink", and "decrease". These words convey the same idea of moving downward but with a different nuance or intensity. For example, "descend" is more formal and often used in technical or scientific contexts, while "drop" and "fall" suggest sudden or rapid movements. Meanwhile, "sink" and "decrease" convey a more gradual or controlled descent. Experiment with these synonyms to spice up your language and make your message clearer and more engaging.