[countable] a person who hates somebody or who acts or speaks against somebody/something. She didn't have an enemy in the world. He has a lot of enemies in the company. After just one day, she had already made an enemy of her manager. They united in the face of a common enemy. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.