esclavo

noun
  1. A person who is legally owned by someone else and is forced to work for them without pay. noun
    The plantation owner had many esclavos working in the fields.
    Throughout history, many societies have used esclavos to build their infrastructure.
  2. A person who is excessively dependent upon or controlled by something. noun
    He became an esclavo to his own ambitions, working day and night.
    She was an esclavo to fashion trends, always buying the latest styles.