Definitions:

1. a sense of concern with and curiosity about someone or something noun
   • an interest in music
2. a social group whose members control some field of activity and who have common aims noun
   • The iron interests stepped up production.
3. excite the curiosity of verb
   • engage the interest of
4. the power of attracting or holding one's attention (because it is unusual or exciting etc.) noun
   • they said nothing of great interest

Synonyms:

• concern
• interest group
• interestingness
• involvement
• matter to
• occupy
• pursuit
• sake
• stake
• worry

NearBy Words:

• interest-bearing
• interested
• interestedness
• interesting
• interestingly
• interestingness