Noun

(uncountable) Agitation; the state of being perturbed

(countable) A small change in a physical system, or more broadly any definable system (such as a biological or economic system)

(countable, astronomy, physics) Variation in an orbit due to the influence of external bodies

Noun

(en noun)

An intense painful emotion of fear or repugnance.

An intense dislike or aversion; an abhorrence.

* {{quote-book, year=1905, author=

, title= , chapter=1 citation , passage=“Mrs. Yule's chagrin and horror at what she called her son's base ingratitude knew no bounds ; at first it was even thought that she would never get over it. […]”}}

A genre of fiction, meant to evoke a feeling of fear and suspense.

* {{quote-news

, year = 1898 , date = July 3 , newspaper = Philadelphia Inquirer , page = 22 , passage = The Home Magazine for July (Binghamton and New York) contains ‘The Patriots' War Chant,’ a poem by Douglas Malloch; ‘The Story of the War,’ by Theodore Waters; ‘A Horseman in the Sky,’ by Ambrose Bierce, with a portrait of Mr. Bierce, whose tales of horror are horrible of themselves, not as war is horrible; ‘A Yankee Hero,’ by W. L. Calver; ‘The Warfare of the Future,’ by Louis Seemuller; ‘Florence Nightingale,’ by Susan E. Dickenson, with two rare portraits, etc. }}

* {{quote-news

, year = 1917 , date = February 11 , newspaper = New York Times , section = Book reviews , page = 52 , passage = Those who enjoy horror , stories overflowing with blood and black mystery, will be grateful to Richard Marsh for writing ‘The Beetle.’ }}

* 1947 , re-release poster, tagline:

A Nightmare of Horror !

(informal) An intense anxiety or a nervous depression; this sense can also be spoken or written as the horrors .