clefs

In a sentence

• J'ai perdu mes clefs de voiture, je dois les chercher.

  I lost my car keys, I need to look for them.

  Here, 'clefs' refers to physical keys used to start a car, indicating possessions relevant to the expressed activity.

• Les clefs du succès résident dans l'effort et la persévérance.

  The keys to success lie in effort and perseverance.

  In this usage, 'clefs' is metaphorical, representing factors or essentials necessary to achieve success.

• Elle étudie les clefs de la musique pour mieux comprendre les compositions.

  She studies the keys of music to better understand the compositions.

  Here, 'clefs' pertains to musical keys or symbols, specifically related to the context of studying music.