A "hurdle" is an obstacle or barrier that must be overcome, often used in sports and competitions. In track and field, hurdles are specific barriers that athletes must jump over while running. The sport of hurdling requires speed, agility, and precise timing to clear each hurdle without knocking it down. In a broader context, hurdles can refer to challenges or difficulties faced in various aspects of life, such as personal goals or professional projects. Overcoming these hurdles often requires determination, problem-solving skills, and resilience to achieve success.