Definition: The act of preventing or hindering; obstruction of action, access, or approach; thwarting.

Alright class, settle down now, let’s take a look and see, At the word "prevention," it's quite key! The dictionary gives us a clue, you see, “The act of preventing or hindering,” that’s the decree. It’s about stopping things before they start, Playing a proactive, intelligent part. Think of building blocks – you stack them high, But prevention's stopping a tumble from the sky! "Obstruction of action," means to slow it down, Like a roadblock on a path, in this town. “Access” denied? That’s not quite right, Prevention keeps things out of sight! And “thwarting,” like a challenge you face, Preventing something from taking its place. So, prevention is all about being smart and wise, Anticipating problems with careful eyes! It's stopping trouble, before it’s near, A thoughtful action, banishing fear! Do you have any questions? Let’s discuss this with glee – Now who can give me an example of prevention, you see?