Empire vs Reserve

Empire

name

  • A census-designated place in Washoe County, Nevada, United States. 

  • A census-designated place in Stanislaus County, California, United States. 

adj

  • Following or imitating a style popular during the First French Empire (1804–1814). 

  • Having the waistline just below the bust; featuring an empire waist. 

Reserve

name

  • A census-designated place in Montana. 

  • A census-designated place in Louisiana. 

  • A village, the county seat of Catron County, New Mexico. 

  • A city in Kansas. 

  • A census-designated place in Wisconsin. 

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