spettro

noun
  1. A spectrum or range of different but related ideas, qualities, or activities. noun
    The conference covered a wide spettro of topics, from technology to philosophy.
    Her interests span the entire spettro of the arts, from classical music to modern dance.
  2. A ghost or phantom; an apparition. noun
    The old house was rumored to be haunted by a spettro that roamed the halls at night.
    He claimed to have seen a spettro in the abandoned building, which sent chills down his spine.