What does キー mean?
キー is a Japanese noun meaning “key (for a lock)” in English. It can also be translated as “key (to solving something), key (person, point, etc.)” depending on context. It is written as キー in hiragana, and kii in romaji. This word is part of JLPT N4 vocabulary.
Example sentences
彼女はキーを探してポケットをさぐった。
She searched her pockets for the key.
彼女はピアノのキーを押した。
She depressed the keys of the piano.