solitaire

noun

• 1any of various card games played by one person, the object of which is to use up all one’s cards by forming particular arrangements and sequences.

• 2a diamond or other gem set in a piece of jewelry by itself.
• a ring set with a solitaire diamond or other gem.

• 3either of two large extinct flightless birds related to the dodo, found on two of the Mascarene Islands until they were exterminated in the 18th century.

  • Family Raphidae: the Rodriguez solitaire (Pezophaps solitaria), and the poorly known Réunion solitaire (Ornithaptera solitaria)

• 4a large American thrush with mainly gray plumage and a short bill.

  • Genus Myadestes, subfamily Turdinae, family Muscicapidae: several species