fil

In a sentence

• Le fil du chargeur est abîmé.

  The cable of the charger is damaged.

  Here, 'fil' is used to mean a physical thread or wire, specifically the one that connects electrical devices.

• Suivez le fil de l'histoire pour mieux comprendre.

  Follow the thread of the story to better understand.

  In this sentence, 'fil' metaphorically refers to the progression or continuity of a story.

• Le funambule marche sur un fil tendu.

  The tightrope walker walks on a stretched wire.

  Here, 'fil' denotes a taut wire or cord used in tightrope walking.