Your viewpoint is the particular way you see the world, or your distinct perspective on things. It’s literally your point of view! To stop arguing with someone, try to see things from their viewpoint so you can kiss and make up.
Use viewpoint to talk about a person's individual attitude about things. A parent, for example, often has a different viewpoint about bedtime than a child does. Conflicts in politics come up due to differing viewpoints on issues like taxes, welfare, and defense. Another way to say viewpoint is "point of view." The earliest meaning of viewpoint was in the physical sense, as when you stand on the roof of a building to get a great viewpoint of the city.