(finance) The percentage of an amount of money charged for its use per some period of time (often a year).

plural of vested interest

(law) A situation in which an individual or legal entity in a position of trust (such as an attorney, investment advisor, broker, politician, executive, director, scientist or physician) has competing professional or personal interests.

(film, literature) One who is of interest as a (potential) partner in love. / A romantic relationship; a romance. / (film, literature) A romantic plot or subplot in a film or book.

Common good.

(banking, finance) The amount of interest that is allowed or required to be charged by law; an interest rate determined by law.

plural of love interest

plural of interest rate

plural of future interest

(law) In property law and real estate, a legal right to property ownership which will vest in the future, but which does not include the right to present possession or enjoyment of the property.