castaway vs outcast

castaway

noun
  • An outcast; someone cast out of a group or society. 

  • A discarded person or thing. 

  • A shipwrecked sailor. 

adj
  • Cast adrift or ashore; marooned. 

  • Shipwrecked. 

  • Cast out; rejected or excluded from a group. 

outcast

noun
  • Synonym of outsider: someone who does not belong, a misfit. 

  • The amount of increase in the bulk of grain during malting. 

  • One that has been excluded from a society or system, a pariah, a leper. 

  • A quarrel. 

verb
  • To cast out; to banish. 

adj
  • That has been cast out; banished, ostracized. 

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