Sameness is the quality of being alike or unchanging. When every house on a street looks identical, you notice the sameness of the neighborhood. When you eat the same lunch every single day, the sameness might eventually bore you.

The word often carries a sense that something lacks variety or interest. A movie with predictable characters might suffer from sameness, where every scene feels too much like the last. A writer might worry about the sameness of her sentences if they all follow the same pattern.

Sometimes sameness provides comfort: the sameness of your morning routine helps you start each day feeling prepared and calm. Other times it stifles creativity: an artist might break away from the sameness of traditional techniques to try something bold and new.

People use sameness when they want to point out that things are monotonous or overly similar. If all the science fair projects look alike, a teacher might mention their unfortunate sameness. The word suggests that a healthy dose of difference or variety could improve the situation.