sharp

The word "sharp" has several common meanings, but they are connected by the idea of something clear, strong, exact, or able to cut. In the most literal sense, it describes something with a fine edge or point, like a sharp knife or a sharp piece of glass. This is the basic physical meaning many learners meet first.

From there, the word spreads into other everyday uses. It can describe quick thinking and careful noticing: a sharp mind understands fast, and a sharp eye catches details that others miss. It can describe something sudden or strongly felt, such as a sharp pain, a sharp turn, or a sharp drop in price or temperature. It can also describe weather that feels biting and unpleasantly cold.

"Sharp" is also used for things that stand out clearly to the senses. A sharp sound may be high, clear, or harsh. A sharp smell or sharp taste can feel strong and biting, like vinegar or smoke. In conversation, a sharp comment or sharp tone may sound critical, impatient, or a little hurtful.

There are a few other very common uses. If you must arrive at eight o'clock sharp, you must arrive at exactly eight, not a minute later. If someone says you look sharp, they mean you look neat and well dressed. In music, a sharp is a note raised by a semitone.

So, this is a flexible word with a simple core idea. Whether it is about a blade, a mind, a pain, a smell, a time, or a style of speaking, it usually suggests something pointed, exact, noticeable, or intense.