gremlin (noun)

1. In the children's book, the gremlin helped the protagonist with their adventures.

2. In the romantic novel, the gremlin played pranks on the couple, adding a touch of mischief to their love story.

3. The painting depicted a whimsical scene with gremlins playing tricks on the characters.

4. In the science fiction novel, the gremlins were portrayed as extraterrestrial beings with advanced technology, causing chaos in a space station.