What are the opposite words for expulsion?

The word expulsion means the act of forcing someone or something to leave a place or an organization. When we think of antonyms for expulsion, the opposite meaning comes to mind, which means allowing entry, welcoming, or acceptance of someone or something. Some of the antonyms for the word "expulsion" are inclusion, retention, admission, integration, and incorporation. For instance, if a student is not subjected to expulsion, they can be retained in school, or their admission can be guaranteed. Similarly, if a foreigner is not subjected to expulsion, they can be integrated into society, ensuring their inclusion and incorporation into the community. Therefore, antonyms of expulsion depict a welcoming and inclusive environment.