What does tire tread wear mean?

Tire tread wear refers to the reduction in the thickness or depth of the tire tread due to friction and contact with the road surface over time. As tires wear down, their ability to grip the road diminishes, which can affect vehicle handling, traction, and safety, especially in wet conditions. Regularly checking tread depth is essential for maintaining optimal performance and ensuring safe driving. If the tread is too worn, it's important to replace the tires to avoid accidents.