Interest is a word with multiple meanings:
1. Interest (noun) - a feeling of wanting to know or learn about something
2. Interest (noun) - money paid regularly at a particular rate for the use of money lent
3. Interest (noun) - the quality of exciting curiosity or holding attention
4. Interest (verb) - to engage the attention or arouse the curiosity of someone
5. Interest (noun) - a legal share or right in something