overrun

Imagine a garden bursting with life—beautiful, but if weeds overrun it, they take over completely, choking out the flowers. That's what "overrun" means: to be overwhelmed or overtaken by something, often in large numbers or very quickly. A military outpost can be overrun by enemy troops, and your inbox can be overrun by spam emails. It suggests a loss of control as one thing dominates another. Think of it like water overflowing its banks—it runs over everything in its path. You might also say a city is "overrun with tourists" during peak season, meaning there are so many that they are difficult to manage. Sometimes, overrun is also used when something goes past a limit, such as when a project overruns its budget.

To overrun something means to overwhelm it, conquer it, or spread rapidly across it, often in a way that is difficult to control. It suggests a forceful and complete takeover. Historically, "overrun" comes from the idea of running over something—literally trampling or exceeding boundaries. This sense of forcefulness remains central to its meaning today. You might read about an army being overrun by enemy forces in a historical account, signifying a military defeat where one side was completely swamped and defeated.

However, "overrun" isn't limited to warfare. A garden can be overrun with weeds, a city overrun with pests, or your daily schedule overrun with urgent requests. It also describes situations where something exceeds its set limits. For example, a project can overrun its budget because of unexpected expenses, meaning the costs went beyond what was planned. Similarly, you might hear about a "time overrun" when a meeting lasts longer than the allotted time.

Figuratively, to be overrun implies being buried under the weight of external demands. While we usually use "overwhelmed" or "overcome" for internal emotions like grief, you might say a customer service department is "overrun with complaints" or an office is "overrun with paperwork." In these cases, the sheer volume of things feels all-consuming and impossible to manage. Whether describing a military conquest, an uncontrolled biological spread, or costs going beyond a plan, overrun always implies a force that breaches boundaries and takes control.