éclairci

In a sentence

• Le ciel s'est éclairci après la tempête.

  The sky has cleared up after the storm.

  In this sentence, 'éclairci' is used as the past participle of 'éclaircir,' describing the action of the sky becoming clearer after the storm.

• Ses cheveux se sont éclaircis avec le temps.

  Her hair has lightened over time.

  Here, 'éclairci' refers to the gradual lightening of hair color over time, employing 'éclaircir' to describe a change in tone.

• Je ne comprends pas cette question, peux-tu l'éclaircir pour moi ?

  I don't understand this question, can you clarify it for me?

  In this example, 'éclaircir' is used in its infinitive form and conceptually means to clarify or make something clearer, applied to the context of comprehension.