The term 'Battle Against' can be summarized by the word 'OPPOSE, ' which is a 6-letter word. Opposing something means to actively resist or fight against it. This could refer to a physical battle, such as a war, or a metaphorical battle, such as a struggle against an idea or concept. In either case, opposing something requires strength and courage, and often involves taking a stand against something that is seen as wrong or unjust.