To use words effectively in horror stories, you need to consider the pacing. Slow - paced horror often uses words like 'drone' or 'moan' to create a lingering sense of dread. In fast - paced horror, words like 'rush' or 'dash' can be used to convey the character's panic. Also, use words that play on the reader's phobias. If it's a story about spiders, words like 'crawl' and 'web' can be very effective. You can also use words that suggest a lack of control, like 'ensnare'. When a character feels 'ensnared' by an unknown force, it heightens the horror.
One way is to use words that appeal to the senses. For example, words like 'stench' can make the reader almost smell the decay in a horror setting. Another is to use words that create a sense of unease, like 'twitch'. You can also use words that are associated with the unknown or the supernatural, such as 'occult'.
Effectively using words for horror stories involves creating a mood. Use words like 'chill' not just to describe the temperature but also the feeling of fear. Use adjectives like 'malevolent' to describe characters or forces in the story. Also, use words that build suspense, like 'lurk'. When you describe something as 'lurking' in the shadows, it makes the reader wonder what it is and creates tension. For instance, 'The malevolent figure lurked in the shadows, sending a chill down her spine as the stench of decay filled the air.' This combination of words makes for a very effective horror description.