interest - noun

a sense of concern with and curiosity about someone or something

a reason for wanting something done

the power of attracting or holding one's attention (because it is unusual or exciting etc.)

a fixed charge for borrowing money; usually a percentage of the amount borrowed

(law) a right or legal share of something; a financial involvement with something

(usually plural) a social group whose members control some field of activity and who have common aims

a diversion that occupies one's time and thoughts (usually pleasantly)

interest - verb

• excite the curiosity of; engage the interest of
• be on the mind of
• be of importance or consequence

interest - thesaurus

concern   interestingness   involvement   occupy   pastime   pursuit   sake   stake   worry