as against vs contra

as against

prep
  • In comparison to 

contra

prep
  • against; contrary or opposed to; in opposition or contrast to 

verb
  • To undo; to reverse. 

noun
  • A deal to swap goods or services. 

  • A conservative; originally tied to Nicaraguan counter-revolutionaries. 

  • An entry (or account) that cancels another entry (or account). 

  • Any of the musical instruments in the contrabass range, e.g. contrabassoon, contrabass clarinet or, especially, double bass. 

  • A contra dance. 

adv
  • contrary to something 

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