reality or consciousness, as opposed to a dream state or unconsciousness

a king cobra

a king penguin

a flattened area used for festivals or ceremonies / a place where events are held

an act, a section of a play

a place / a situation, the circumstances of a particular place and time / an act, a section of a play / (physics) a field / a trading floor, as in a market or exchange

place / space / field

vitamin K

(skiing) a K-point, a construction point, a critical point

(derogatory, offensive, Internet slang) South Korea