Definition of interest
(Entry 1 of 2)
1a: a feeling that accompanies or causes special attention to something or someone : CONCERN
b: something or someone that arouses such attention
c: a quality in a thing or person arousing interest
2: ADVANTAGE, BENEFITalso : SELF-INTEREST
3a: a charge for borrowed money generally a percentage of the amount borrowed
b: the profit in goods or money that is made on invested capital
c: an excess above what is due or expectedreturned the insults with interest
4a(1): right, title, or legal share in something
(2): participation in advantage and responsibility
