The word juice has several meanings:

1. The liquid that comes from fruits and vegetables. When you squeeze an orange, that sweet liquid is orange juice. Juice contains vitamins and natural sugars from the fruit or vegetable it came from. Some people drink fresh-squeezed juice, while others buy it in cartons at the store.
2. The natural liquids in meat or other foods. A perfectly cooked steak releases juices when you cut into it. Cooks often talk about letting meat “rest” after cooking so the juices redistribute throughout, keeping it moist and flavorful.
3. Electrical power or energy (informal). When your tablet battery dies, someone might say it's “out of juice.” A mechanic might talk about giving an engine more juice to make it run faster. The phrase captures how electricity flows and powers things, similar to how juice flows from a fruit.
4. Energy, excitement, or power more generally. A baseball player who hits lots of home runs has juice in their swing. A speaker who captivates an audience brings juice to their presentation. When you say something has “got some juice to it,” you mean it has impact or effectiveness.

The verb to juice means to extract juice from something, like juicing lemons for lemonade.