pest

A pest is an animal that people don't like because it harms their plants or crops. It can also refer to something annoying, like a person who's always bothering others.

When we talk about pests, we usually think of insects or rodents that destroy gardens or fields. But the word can also be used more broadly to describe anything that gets on our nerves, whether it's a noisy neighbor, a pesky phone call, or even just a bad habit. For example, if someone always complains about everything, they might be seen as a pest in their social circle. If you're tired of getting junk mail, you could call it a pest – something annoying and unwanted.