(bowed string instruments) ring finger / (keyboard instruments) middle finger

(idiomatic, singular only) An obscene gesture, typically consisting of extending the middle finger at somebody.

plural of Financial Intelligence Unit

A government agency found in many countries, responsible for investigating and preventing criminal manipulation of finance systems.

In terms of finance or money.

(idiomatic) A difference, albeit vague and difficult to discern.

(finance) An institution that contracts with the bank and the merchant to enable credit card transactions. The acquirer deposits the credit card totals and debits the end-of-month processing fees from the merchants' accounts.

simple past tense and past participle of finger

(in combination) Having fingers (of the specified kind).

(sports) The blow of the whistle by the referee or other adjudicator signifying the end of the match.