estrechas

In a sentence

• Las calles del barrio antiguo son muy estrechas.

  The streets of the old neighborhood are very narrow.

  In this sentence, 'estrechas' describes the narrowness of physical objects, specifically streets.

• Mantienen relaciones estrechas entre sus familias.

  They maintain close relationships among their families.

  Here, 'estrechas' is used figuratively to indicate close, strong relationships.

• Las puertas son tan estrechas que no podemos pasar con la mesa.

  The doors are so narrow that we can't pass with the table.

  In this example, 'estrechas' again refers to the limited width of physical items, emphasizing a restriction in space.