Animosity is a noun, meaning intense hostility or aversion.
Examples:
* There was palpable animosity between the two rivals.
* He felt a deep animosity towards his former employer.
While you can't use "animosity" directly as a verb, you can use phrases like:
* To feel animosity towards someone: "He felt animosity towards his neighbor."
* To harbor animosity: "She harbored animosity towards her ex-husband."
* To be filled with animosity: "The room was filled with animosity as the two families argued."
Let me know if you have any other words you'd like to explore!