When it comes to discussing a specific example that supports or proves a point, the phrase "case in point" or "case-point" is often used. However, there are several other synonyms that can be used to convey the same meaning. One alternative is "illustration," which means a picture or example that clarifies or explains something. Another option is "demonstration," which suggests a practical or visual proof of a statement or theory. "Exhibit" is yet another synonym for "case-point," which refers to a display or presentation of evidence to support an argument. Overall, there are various words that can be used to substitute for "case-point" in writing or conversation.