Bank note and C-note

Bank note noun - A piece of paper money (especially one issued by a central bank).

C-note and bank note are semantically related. In some cases you can replace phrase "C-note" with "Bank note", this phrases are similar.

C-note noun - A United States bill worth 100 dollars.

Bank note and c-note are semantically related. Sometimes you can use "Bank note" instead a noun phrase "C-note".