soir

In a sentence

• Je vais au cinéma ce soir.

  I am going to the cinema this evening.

  In this sentence, 'soir' is used as a noun to refer to the evening of the current day.

• Le soir tombe tôt en hiver.

  The evening falls early in winter.

  Here, 'soir' illustrates a general period of time, describing the evening part of the day in a seasonal context.

• Nous organisons une soirée le samedi.

  We are organizing an evening gathering on Saturday.

  'Soirée' is a derived form of 'soir' and refers to an event or gathering taking place during the evening.