A suffrage campaign is a movement created to win the right for something, such as the the women's suffrage, which was created to win the right for women to vote. A convention is a gathering of individuals who meet at an arranged place and time in order to discuss or engage in some common interest. The most common conventions are based upon industry, profession, and fandom. So to answer your question, no, they are not. I gave info incase u need to explain your answer.