alone vs solitaire

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. 

solitaire

adj
  • living or being alone; solitary 

noun
  • One of several American species of bird in the genus Myadestes in the thrush family. 

  • Any of various card games that can be played by one person. Called patience in the rest of the world. 

  • An extinct bird formerly believed to be related to the dodo, more precisely Réunion solitaire, Raphus solitarius, now preferably Réunion ibis, Threskiornis solitarius. 

  • A single gem, usually a diamond, mounted in a piece of jewellery by itself. 

  • An extinct bird, related to the dodo, Pezophaps solitaria Rodrigues solitaire), that lived on the island of Rodrigues. 

  • A person who lives alone; a recluse or hermit. 

  • A game for one person, played on a board with pegs or balls, in which the object is, beginning with all the places filled except one, to remove all but one of the pieces by "jumping", as in draughts. 

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