傾國

Etymology
For the figurative senses, see.

Verb

 * 1)  to make a nation collapse;  to be destroyed; to collapse

Adjective

 * 1)  drop-dead gorgeous; extremely beautiful (and having the potential of bringing about the downfall of an empire)

Noun

 * 1)  drop-dead gorgeous woman; beauty who could drive a man to distraction (and bring about the downfall of an empire)
 * 2)  the entire country
 * 1)  the entire country