a German city; an industrial and commercial and financial center
"Frankfurt serves as Germany's primary hub for international banking and commerce."
A frankfurter; a hot dog sausage.
"He added two franks to his bun before taking a bite of his lunch."
In plain English: Frankfurt is a major city located in western Germany known for its international airport and financial district.
"We decided to visit Frankfurt, Germany for our summer vacation."
Frankfurt am Main, the largest city in Hesse, in central Germany.
"Frankfurt am Main is the largest city in Hesse and serves as a major financial hub in central Germany."
The German financial industry.
"The Frankfurt stock exchange serves as a central hub for Germany's vast financial industry."
The name was borrowed directly into English from the German city of Frankfurt. It retains its original identity as a proper noun referring to that specific location.