alone vs outer

alone

adj
  • By oneself, solitary. 

  • Lacking peers who share one's beliefs, experiences, practices, etc. 

adv
  • Not requiring anything further; merely. 

  • By oneself; apart from, or exclusive of, others; solo. 

  • Without outside help. 

  • Used to emphasize the size or extent of something by selecting a subset. 

  • Not permitting anything further; exclusively. 

outer

adj
  • Outside; external. 

  • Farther from the centre of the inside. 

noun
  • Someone who outs another. 

  • The 4th circle on a target, outside the inner and magpie. 

  • The smallest single unit sold by wholesalers to retailers, usually one retail display box. 

  • An outer part. 

  • A shot which strikes the outer of a target. 

  • One who puts out, ousts, or expels. 

  • An uncovered section of the seating at a stadium or sportsground. 

  • Someone who admits to something publicly. 

  • One who supports leaving the European Union. 

  • An ouster; dispossession. 

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