flatmate (noun)

1. My flatmate, who is a devout Muslim, often invites me to join him for evening prayers at the mosque.

2. My flatmate is a huge fan of comics. Our apartment is filled with shelves full of comic books and superhero collectibles.

3. Every Friday night, my flatmate and I gather in the living room to watch horror movies and scare ourselves silly.

4. My flatmate is a literature major and always has a stack of classic novels on their bedside table. We often have deep discussions about the books we're reading.