vell

In a sentence

• Aquest cotxe és molt vell.

  This car is very old.

  Here, 'vell' is used as an adjective to describe the age of an object, emphasizing that the car is old in time.

• El meu vell amic treballa a l'hospital.

  My longtime friend works at the hospital.

  In this sentence, 'vell' functions metaphorically as an adjective to indicate long-standing acquaintance, not age.

• Al barri vell hi ha carrers estrets.

  In the old district, there are narrow streets.

  Here, 'vell' is used to define an area of historical or traditional significance, referring to the antiquity of the district.