1. key
Kanji
1. key
1. key
2. lock
3. key (to a problem, success, etc.); clue
1. key (on a piano, organ, etc.)
1. Key's; Of key
1. With a key; By means of a key
1. It is the key.; The key is.
1. Not a key; Not the key
1. Was key.; Was crucial.
1. If/when [it's a] key; If [it's] a key
1. It was a key.