A notched and grooved, usually metal implement that is turned to open or close a lock.
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1. major key (ÀåÁ¶) 2. in a minor key (ħ¿ïÇÑ ¾îÁ¶·Î) 3. a key color (±âº»»ö) 4. all in the same key (¸ðµÎ °°Àº ¸ñ¼Ò¸®·Î, ´ÜÁ¶·Ó°Ô) 5. the key to trainning a horse (¸»À» ÈÆ·Ã½ÃŰ´Â ¹æ¹ý)