double-decker vs omnibus

double-decker

noun
  • A headline that is two lines long. 

  • Any object with two layers or parts stacked on top of each other. 

  • A sandwich with three slices of bread, whose toppings are on both sides of the middle slice. 

  • A vehicle (usually a bus, coach or train) or aircraft with two floors. 

  • a man who both penetrates (top) and is penetrated (bottom) in sex with other men; sometimes also has relationships with women and/or presents masculine as well as feminine mannerisms and appearances. 

  • A frigate with two decks above the waterline. 

omnibus

noun
  • An anthology of previously released material linked together by theme or author, especially in book form. 

  • A broadcast programme consisting of all of the episodes of a serial that have been shown in the previous week. 

  • A stamp issue, usually commemorative, that appears simultaneously in several countries as a joint issue. 

adj
  • Containing multiple items. 

  • Of a transportation service, calling at every station, as opposed to express; local. 

verb
  • To combine (legislative bills, etc.) into a single package. 

How often have the words double-decker and omnibus occurred in a corpus of books? (source: Google Ngram Viewer )