Something that is offensive upsets or embarrasses people because it is rude or insulting.

A military offensive is a carefully planned attack made by a large group of soldiers.

If you conduct an offensive, you take strong action to show how angry you are about something or how much you disapprove of something.

In sports such as American football or basketball, the offensive team is the team which has possession of the ball and is trying to score.

If you go on the offensive ,go over to the offensive, or take the offensive, you begin to take strong action against people who have been attacking you.