Tom was not guilty of stealing his colleague's pen last week and he could really see the effort the teacher had been done to avoid a grave injustice in his case.
It means a violation of another's rights or what is right
The phrase 'a grave injustice' refers to a serious wrongdoing that causes significant harm or unfair treatment. It emphasizes the severity of the injustice, highlighting that it is not a minor issue but one requiring attention and resolution. Examples include wrongful convictions or systemic discrimination, which both represent serious violations of rights and fairness.
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