block letter (noun)

1. In the horror story, the murderer left a chilling block letter note at the crime scene.

2. The monk meticulously wrote the scriptures in block letters to enhance the religious experience for the readers.

3. The superhero's name was always written in bold block letters, adding a dynamic touch to the comic book panels.

4. The spaceship's control panel had labels and instructions written in futuristic block letters.