powerhouse

A powerhouse is an extremely strong and influential person or group that has a big impact. Think of someone who's like a leader, but also super capable and effective.

In everyday language, people often use "powerhouse" to talk about organizations, companies, or individuals who are making a big difference in the world. For example, you might hear someone say, "The new tech startup is becoming a powerhouse in the industry" – this means it's growing really fast and changing things quickly. You could also call a talented athlete, like LeBron James, a powerhouse on the court because of their incredible skills. Sometimes people use the word to describe a powerful engine or machine too.