A sharp point or edge is very thin and can cut through things very easily. A sharp knife, tool, or other object has a point or edge of this kind.

You can describe a shape or an object as sharp if part of it or one end of it comes to a point or forms an angle.

A sharp bend or turn is one that changes direction suddenly.

If you describe someone as sharp, you are praising them because they are quick to notice, hear, understand, or react to things.

If someone says something in a sharp way, they say it suddenly and rather firmly or angrily, for example because they are warning or criticizing you.

A sharp change, movement, or feeling occurs suddenly, and is great in amount, force, or degree.

A sharp difference, image, or sound is very easy to see, hear, or distinguish.

A sharp taste or smell is rather strong or bitter, but is often also clear and fresh.

A sharp wind, or sharp cold, is so strong or intense that it almost hurts you when you are exposed to it.

Sharp clothes are neat, elegant, and fashionable.

Sharp is used after stating a particular time to show that something happens at exactly the time stated.

Sharp is used after a letter representing a musical note to show that the note should be played or sung half a tone higher. Sharp is often represented by the symbol #.

If you say that someone is at the sharp end of a particular activity or type of work, you mean that they are involved in the most difficult or dangerous aspects of it.