A sharp increase is a rapid and significant rise in a certain value or quantity. It can be described by words such as SPIKE, HIKE, SURGE, LEAP, and JUMP. These terms all refer to a sudden and dramatic change in the amount of something. For example, a SPIKE in sales could refer to a sharp increase in the number of products sold in a short period of time. A HIKE in prices could refer to a sharp increase in the cost of goods or services. A SURGE in demand could refer to a sharp increase in the number of people wanting a certain product or service. A LEAP in profits could refer to a sharp increase in the amount of money made from a business venture. Finally, a JUMP in popularity could refer to a sharp increase in the number of people who are interested in a certain topic or trend.