contraris

In a sentence

• Els contraris s'atrauen.

  Opposites attract.

  Here, "contraris" is used as a plural noun referring to entities or things that are opposite to each other.

• Les opinions contràries ens enriqueixen.

  Opposing opinions enrich us.

  In this sentence, "contraries" is an adjective describing opinions as being opposite or differing.

• A la biblioteca, vaig trobar un llibre sobre magnets i els seus pols contraris.

  At the library, I found a book about magnets and their opposing poles.

  Here, "contraris" is an adjective describing the poles of the magnet as opposing.