autobus vs omnibus

autobus

noun
  • A large group of cyclists who have fallen behind the peloton (“main group of riders”) in a race. 

omnibus

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

adj
  • Containing multiple items. 

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

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. 

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