interest in something—
1. said of smth. with which a person concerns himself because he enjoys it:
- As women develop greater interest in sport, their own attitude to their bodies has changed.
2. condition of wanting smth. to be done:
- What set him apart from most other writers are his personal honesty and courage, his passionate interest in carrying through his ideas.
3. a legal share in the ownership of a business:
- Everyone in town has interest in some businesses, and it is impossible not to have dealings with business people.
interest on something—money charged or paid for the use of monetary means:
- Most of your monthly payments will be used to pay the interest on the loan.