demie

In a sentence

• Je me lève à six heures et demie chaque jour.

  I wake up at six-thirty every day.

  In this sentence, 'demie' indicates half an hour after six o'clock, forming the standard expression for 'six-thirty' in French.

• La pizza était coupée en deux moitiés, j'ai mangé une demie avec plaisir.

  The pizza was cut into two halves; I ate one half with pleasure.

  Here, 'demie' is used as a noun to indicate one half of an object, in this case, a pizza.

• Avec une heure et demie de marche, nous serons arrivés.

  With an hour and a half of walking, we will have arrived.

  In this sentence, 'demie' refers to half an hour, complementing 'une heure' to specify the time duration of one and a half hours.