French is a language. They speak French in the whole of France and part of Belgium, part of Switzerland. French is also spoken in French speaking Canada and other places. French is an important second language in former French colonies notably in Africa.

French can also refer to anything connected with France, notably French fashion, French cookery (cuisine), etc. etc. There are of course also the French people.

French fries are what the British people call chips. George W. Bush also known as Dubya decided to call them Freeedomm fries because the French didn't agree with him over Iraq.

In the 2004 election John Kerry was attacked for being able to speak French. Newt Gingrich attacked Mitt Romney in a similar way during the 2012 Presidential primaries.