To abhor something means to hate it intensely or feel deep disgust toward it. When you abhor something, you find it genuinely repulsive or morally wrong, experiencing a powerful feeling of revulsion that goes beyond ordinary dislike.

You might abhor cruelty to animals, or abhor the way a bully treats other kids at school. Someone who values honesty might abhor lying and cheating. The word carries a sense of moral revulsion, not just personal preference. You might dislike broccoli, but you probably don't abhor it, because there's nothing morally offensive about a vegetable.

The related adjective is abhorrent, which describes something that causes this intense feeling of disgust. Stealing from your teammates would be abhorrent behavior. Most people find cruelty and injustice abhorrent.