The phrase "modern-day" refers to something that exists or occurs in contemporary times, i.e., within the current era or time period. It can be used to describe events, trends, technologies, and other aspects of life that are currently prevalent or popular, as opposed to those from a previous age or era. The term "modern-day" is often used in contrast with older or historical periods, implying that the current time period represents progress, advancement, and change compared to earlier eras.