This is the 11547th most frequent Korean word.
나비
Butterfly.
In this sentence, "나비" means a butterfly, as is a noun representing the insect.
나비는 꽃을 찾고 있어요.
The butterfly is looking for flowers.
Here, "나비" is used metaphorically to describe the light and graceful movement of someone's dance.
그녀의 춤은 나비처럼 가벼워 보였어요.
Her dance appeared as light as a butterfly.
In this example, "나비" continues to denote a butterfly but is used in the context of a dream or fantasy.