noun

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

first city,most important city,seat of government,centre of administration,metropolis

adjective

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

murder is the only capital crime in the state

exclamation

used to express approval, satisfaction, or delight.

That’s splendid! Capital!