To apply means to put something to use for a specific purpose. When you apply sunscreen, you spread it on your skin to protect yourself from the sun. When you apply the brakes on your bike, you use them to slow down or stop.

The word takes on different meanings depending on the context. You can apply what you learned in math class to solve a real problem, like figuring out if you have enough money to buy lunch. You can apply effort to a difficult task, meaning you work hard at it. A rule might apply to everyone in the class, meaning it affects all students equally.

When someone applies for something like a job, a spot on a team, or admission to a school, they formally request to be considered. You fill out an application explaining why you'd be a good choice. In this sense, applying means making your case and asking for an opportunity.

The word suggests active effort rather than passive hoping. You don't just wish for things to work out: you apply yourself, you apply your skills, and you apply for what you want. When a coach says a player needs to apply themselves more in practice, they mean the player should focus and work harder, putting their abilities to full use.