The phrase "round the corner" typically means that something is nearby or will happen very soon. It can be used both literally and figuratively.
Literally: It refers to a physical location that is just around the corner from where someone is currently. For example, "The grocery store is just round the corner."
Figuratively: It can indicate that an event or situation is imminent or approaching. For instance, "Help is just round the corner" suggests that assistance will be available very soon.
Overall, it conveys a sense of proximity, either in space or time.