complets

In a sentence

• Les dossiers sont complets pour le concours.

  The files are complete for the competition.

  Here, 'complets' is used as an adjective modifying 'dossiers', meaning the files are finished or whole.

• Les costumes complets sont souvent portés lors des cérémonies.

  Full suits are often worn during ceremonies.

  Here, 'complets' is modifying 'costumes', indicating that the suits are complete with all parts.

• Le train était complet à cause des voyageurs nombreux.

  The train was fully booked because of the numerous travelers.

  Here, 'complet' (singular form of 'complets') serves as an adjective for 'train', meaning the train is full or occupied without available space.