the city or town that functions as the seat of government and administrative centre of a country or region

Warsaw is the capital of Poland

wealth in the form of money or other assets owned by a person or organization or available for a purpose such as starting a company or investing

rates of return on invested capital were high

a letter of the size and form used to begin sentences and names

he wrote the name in capitals

(of an offence or charge) liable to the death penalty

murder is the only capital crime in the state

(of a letter of the alphabet) large in size and of the form used to begin sentences and names

excellent

he's a really capital fellow

used to express approval, satisfaction, or delight

That's splendid! Capital!

the distinct, typically broader section at the head of a pillar or column

the pillars have moulded capitals