Definition of interest

• a sense of concern with and curiosity about someone or something; "an interest in music"
• the power of attracting or holding ones attention (because it is unusual or exciting etc.); "they said nothing of great interest"; "primary colors can add interest to a room"
• a reason for wanting something done; "for your sake"; "died for the sake of his country"; "in the interest of safety"; "in the common interest"