The term 'KEY' can be found in two different crossword solutions. The first solution is 'ENTER', which is a five-letter word. This word is used to describe the action of entering a room, building, or other space. It can also refer to the act of entering data into a computer system. The second solution is 'KEY', which is a noun that refers to an object used to open a lock or door. Keys are typically made of metal and have a unique shape that allows them to fit into a specific lock. They are also used to start cars and access certain areas.