IPA: /ˈsɒlɪtɛə/
KK: /ˈsɒlɪteə/
A card game played by one person, or a gem set alone, often a diamond.
She enjoys playing solitaire on her computer during her free time.
**Solitaire** → It is formed from "solus" (meaning alone) and "-aire" (a suffix used to form nouns indicating a person or thing associated with a particular quality). The word "solitaire" refers to a game played alone or a person who is alone.
Think of 'alone' ('solus') to remember that 'solitaire' is a game meant for one player.
No commonly confused words.