District vs Portal

District

name
  • The District of Columbia, the federal district of the United States. 

  • The District Line of the London Underground, originally known as the District Railway. 

  • Any of numerous governmental districts. 

Portal

name
  • A municipality of North Dakota. 

  • A surname. 

  • A town in Georgia, United States. 

  • A ghost town in California. 

How often have the words District and Portal occurred in a corpus of books? (source: Google Ngram Viewer )