A point or level beyond which something does not or may not extend or pass. The speed limit on this road is 60 miles per hour.
A restriction on the size or amount of something permissible or possible. There is a limit to the number of items you can purchase during the sale.
The furthest extent of one's physical or mental endurance. After running for two hours, she felt she had reached her limit.
In mathematics, the value that a function or sequence approaches as the input or index approaches some value. As x approaches zero, the limit of sin x divided by x is 1.