DuckCorp Dico

Found 2 definitions

1.                 From English-日本語 (にほんご) FreeDict+WikDict dictionary ver. 2022.11.18:
                   
   
   
                   
                     
   key //ki// //kiː// /[cʰi̞i̯]/ /[kʲʰi̞i̯]/ <adj>
   キー, 鍵 2.
   important
    3.
   indispensable
   
                   
                 

2.                 From English-日本語 (にほんご) FreeDict+WikDict dictionary ver. 2022.11.18:
                   
   
   
                   
                     
   key //ki// //kiː// /[cʰi̞i̯]/ /[kʲʰi̞i̯]/ <n>
   1. キー, ボタン
   button on a typewriter or computer keyboard
   2. 鍵, キー 2.
   crucial step
    3.
   computing: field in a record used as a search argument
    4.
   computing: field of a database constrained to be unique
    5.
   computing: value uniquely identifying entry in associative array
   3. 鍵, かぎ 2.
   device designed to open and close a lock
    3.
   cryptography: piece of information used to encode or decode
   4. キー 2.
   object used to maintain the orientation between two others
    3.
   device used to transmit Morse code
   5. キー, 鍵
   part of a piano or musical keyboard
   6. 調, 鍵
   scale of musical notes