plongeant

In a sentence

• Le plongeant soleil teignait le ciel en rouge.

  The diving sun painted the sky red.

  Here, 'plongeant' is used as an adjective describing the sun in its action of setting or diving over the horizon.

• Elle portait une robe avec un décolleté plongeant.

  She wore a dress with a plunging neckline.

  In this case, 'plongeant' refers to the neckline of a dress, describing its deep and descending style.

• Le plongeant regard de l'enfant cherchait des réponses.

  The diving look of the child sought answers.

  Here, 'plongeant' is metaphorically describing the intensity and focus of the child's gaze, as if diving deep into thought or inquiry.