The Boston Celtics (/ˈsɛltɪks/ SEL-tiks) are an American professional basketball team based in Boston. The Celtics compete in the National Basketball...

(Galatians). The Celtic languages (usually pronounced /ˈkɛltɪk/ but sometimes /ˈsɛltɪk/) are descended from Proto-Celtic, or "Common Celtic"; a branch of the...

The Celtic Football Club, commonly known as Celtic (/ˈsɛltɪk/), is a professional football club in Glasgow, Scotland. The team competes in the Scottish...