A metal instrument designed to be inserted into a lock to open or close doors, boxes, or other secured items.
An essential clue or piece of information that helps explain or resolve a mystery or problem, often leading to the discovery of important insights.
A critical factor or pivotal point that determines the success or outcome of a situation, influencing how events may unfold.
Example:
ドアを開ける際に、私はを壊してしまった。
An opening designed to receive a key for the purpose of unlocking a door, box, or similar object, typically associated with a locking mechanism.
A specific type of aperture found on locks, allowing insertion of a key to operate the mechanism that secures or releases the closure.
The section of a musical instrument, such as a piano or organ, where multiple keys are arranged in a row and are pressed by fingers to produce sound.
A component of devices like typewriters or computers that consists of an array of keys that are activated by finger presses for input and operation.
The part of instruments or devices that features a series of keys, enabling users to create music or input data by striking the keys in a specific order.
Example:
指は鍵盤のあちらこちらに動きました。
A key that is made to fit a specific lock in addition to the original key, typically used for convenience or sharing access.
An additional key created for a lock, allowing multiple users to access the same secured area.
A specially crafted key that serves as a backup to the main key, often utilized in scenarios where access may be needed by more than one person.
Example:
合鍵を持ってきてください。
A metal instrument designed to be inserted into a lock to facilitate the opening and closing of doors or boxes, enabling access or security.
A crucial clue or piece of information that aids in solving a mystery or understanding a complex issue, serving as a means to uncover deeper truths or resolutions.
A pivotal factor that influences the success or outcome of a situation, highlighting points that can determine the direction or fate of events.