is it defamation if it's true

It is not defamation if the statement is true. Truth is an absolute defense to defamation claims. Defamation occurs when someone makes a false statement that harms another person's reputation. If the statement is true, by definition, it cannot be defamatory, even if the statement damages or embarrasses someone. However, the person accused of defamation must often prove the truth of the statement in court to be protected by this defense. There are some nuances, such as how the statement is presented or the context, which might lead to other legal claims, but truth alone negates defamation liability.