casas

In a sentence

• Les cases a la vora del riu són molt antigues.

  The houses by the river are very old.

  Here, 'cases' is the Catalan plural form for 'houses', referring to multiple residences.

• En aquest cas, pren la decisió que consideris millor.

  In this case, make the decision you consider best.

  Here, 'cas' means 'case' or 'instance'. The identified form 'casas' can refer to the conjugated verb 'casar-se' in some contexts.

• Quan observes com es casen les tradicions, és fascinant.

  When you observe how the traditions marry, it is fascinating.

  In this context, 'casen' is the verb conjugation of 'casar-se', meaning 'to marry'. It is unrelated to the noun form of 'cases'.