Difference between star and cosmos flower in Korean
별·코스모스
별star
별 means a star in the sky. People use this word when talking about the night, space, or the sky. It is a common, easy word you can use in simple everyday sentences.
코스모스cosmos flower
코스모스 means the cosmos flower, a common flower with thin stems and soft, colorful petals. People often use this word when talking about flowers in parks, gardens, or autumn fields. In everyday Korean, it usually means the flower, not the universe.
The difference
별 is a star in the night sky. 코스모스 is a flower that grows in fields or gardens.