solitaire
Concise Oxford English Dictionary © 2008 Oxford University Press:
solitaire /ˈsɒlɪtɛː, ˌsɒlɪˈtɛː/
▶noun
- 1 Brit. a game for one player played by removing pegs from a board one at a time by jumping others over them from adjacent holes, the object being to be left with only one peg.
- 2 N. Amer. the card game patience.
- 3 a single diamond or other gem in a piece of jewellery.
■ a ring with a single gem.
- 4 an extinct flightless bird related to the dodo, formerly inhabiting two Indian Ocean islands. [Pezophaps solitaria and Ornithaptera solitaria.]
- 5 a mainly grey American songbird of the thrush family. [Genus Myadestes: several species.]
'solitaire' also found in these Oxford entries:

