* 똑똑하다 (ttok-ttok-hada): This is the most common and versatile word for "smart," often referring to intelligence and quick-wittedness. It's suitable for describing someone who is intelligent in general.
* 영리하다 (yeong-ri-hada): This word implies being clever and resourceful, often in a practical or cunning way.
* 총명하다 (chong-myeong-hada): This describes someone who is bright and intelligent, often suggesting a natural aptitude for learning.
* 현명하다 (hyeom-myeong-hada): This translates to "wise" or "sagacious," implying good judgment and practical wisdom, rather than just intellectual brilliance.
The best choice depends on the nuance you want to convey. For most situations, 똑똑하다 (ttok-ttok-hada) is a safe and appropriate choice.