Here's the breakdown:
* Patience is a general term used in many English-speaking countries (especially the UK and Australia) to describe any single-player card game.
* Solitaire is a specific type of Patience game, particularly popular in the US. It's often referred to as "Klondike Solitaire" to distinguish it from other Patience games.
So, while all Solitaire games are Patience games, not all Patience games are Solitaire.