noun
solitaire
SAH-luh-tair/ˈsɑːləter/
A game for one player who arranges cards or moves pieces according to rules.
She plays solitaire at the kitchen table after dinner each night.

Etymology
The solitude element connects the game with being alone. Earlier used for a person living in solitude, the word also became the name of a card game requiring only one player.
In context
solitaire and social, two words that don't really seem to go together a lot, right? Yeah. The whole point of Solitaire is to keep yourself occupied when you're alone and bored by yourself.
More examples
- I shuffle the deck before starting a new game of solitaire.
- In this version of solitaire, you jump pegs over one another.
- You win this solitaire game by sorting all the cards by suit.
Forms
solitaire · solitaires
solitary adjective — Alone or done without other people.
Similar words
- puzzle
- Can be solved alone without using cards or pieces.