You didn't say which definition of the word you wanted to use, so this may not be correct.
Her interest in music was obvious.
The interest on the loan was too high.
A platypus is an interesting creature.
An interesting film, rich in the underworld's argot
Voodoo is a very interesting word.
the transformation of a butterfly is interesting
The epilogue was the most interesting part of the book.
The autobiography about George Washington was very interesting.
At a party i intermingled with a lot of interesting people.
The histories of books are usually not interesting.
This is an interesting cornice; let's use it.
Here,The word muddle is very interesting.
The beginning of February is always interesting because everybody comes over.
The coconut from Hawaii was exotic because it was strange and interesting.