Durable means able to last a long time without breaking, wearing out, or falling apart, even with heavy use. A durable backpack can survive years of being stuffed with books, tossed on the ground, and dragged through hallways. Durable hiking boots keep protecting your feet after miles of rocky trails. A durable friendship weathers disagreements and time apart.

The opposite of durable is fragile or flimsy. Think of the difference between a cheap plastic toy that cracks after a few days and a well-made wooden toy that gets passed down through generations. That wooden toy is durable.

When something is durable, it's built to withstand wear and tear. Construction workers need durable work gloves because regular gloves would shred in hours. Schools buy durable furniture because hundreds of students will use those same desks and chairs year after year.

People value durability because durable things don't need constant replacement. When you're choosing between two bikes and one is more durable, it means that bike will likely serve you well for many more years, making it worth the investment.