Paranoid schizophrenia is a serious mental disorder characterized by delusions and hallucinations. Some synonyms for this term include delusional disorder, acute psychosis, and psychosis. These words describe the same condition, but each has its own connotation and may be used in specific contexts. For example, delusional disorder may refer to a milder form of paranoid delusions without other psychotic symptoms. Acute psychosis describes a sudden onset of psychotic symptoms that may or may not include paranoid delusions. Psychosis is a more general term that covers a range of mental disorders characterized by loss of contact with reality. All of these terms can help clinicians and researchers communicate more precisely about the nature and severity of a patient's symptoms.