sol

In a sentence

• O sol nasce todas as manhãs.

  The sun rises every morning.

  Here, 'sol' is used as a noun to refer to the star that provides light and warmth on Earth.

• Hoje está muito sol lá fora.

  Today, it's very sunny outside.

  In this sentence, 'sol' is used colloquially to describe a sunny day or the presence of sunlight.

• Ele comprou um protetor solar para se proteger do sol.

  He bought sunscreen to protect himself from the sun.

  Here, 'sol' is again used as a noun to refer to sunlight or the sun's rays, emphasizing their potential impact.