Autism, or Autism Spectrum Disorder (ASD), is a neuro-developmental disorder characterized by a range of challenges related to social interaction, communication, and repetitive behaviors. It is called a "spectrum" because it encompasses a wide variation in symptoms and levels of impairment. People with autism may have different strengths and difficulties, and the condition can manifest in various ways. It's important to recognize that each individual with autism is unique, and there is no one-size-fits-all description of the condition.