These are all legal words and each country might use them slightly differently and each may have a specific meaning within the legal system. They all mean that some previous law or situation no longer applies. I would be wary about using them in a legal context, as if you get it it wrong, you may not be able to go back.

You can end a valid law by abolishing it, but “repeal” means to cancel it. “Rescind” can be for a law or an agreement. In reality, we often use these to mean the same thing. I hope this helps! Feel free to message me if you need lessons. I am a native speaker and a certified teacher.

abolish is usually used in the context of formally banning something or putting an end to something. ex. Slavery was abolished in the US in the 1800's. Repeal refers to when a law a governmental act is taken back and revoked. ex. The prohibition in the US was repealed in 1919. Rescind has a similar meaning to repeal, but used in a wider context. ex. _____'s college admission was rescinded.

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