Antonyms are words that have the opposite meaning of another word. The term "passage outs" can have different antonyms depending on the context of use. If "passage outs" refers to the act of leaving or departing, the antonyms can be arrival, entrance, or return. On the contrary, if it refers to the publication of a piece of writing, the antonyms can be suppression, prohibition, or withholding. In the context of an examination, where "passage outs" refers to failing or not qualifying, the antonyms can be passing, success, or approval. By understanding antonyms, one can expand their vocabulary and enhance their communication skills.