itch

An itch is usually an irritating feeling on the skin that makes you want to scratch. It is often caused by insect bites, allergies, dry skin, or sometimes a medical condition. You might say, "Her mosquito bite left a terrible itch," or "The wool sweater made his skin itch."

However, "itch" is also used in a wider sense. It can describe a strong desire to do something. In this meaning, it suggests a feeling that keeps bothering you until you act on it. You might say someone has "an itch to travel," meaning they really want to see the world. A chef might have "an itch to perfect a new recipe."

The word can also be used as a verb. Your skin can itch, and a sweater, bite, or rash can make you itch. That makes it useful for both the feeling itself and the action or reaction connected to it.

So whether it is a skin problem that needs relief or a strong wish that pushes you to do something, "itch" is a word about something hard to ignore. It points to a need for relief, action, or satisfaction.