Horror (noun)

1. Intense fear, dread, or dismay.
2. A thing causing intense fear or disgust.

Origin:

Late 16th century: from latin horror, from horrere "stand on end, tremble".

Examples:

1. The horror of war is something that can never be forgotten.
2. She was filled with horror at the sight of blood.
3. The thought of speaking in public is a common horror for many people.
4. The movie's plot is centered on a woman who must escape the horrors of an abandoned mental hospital.
5. The idea of drowning in deep water is a horror for many people.