Feature

A feature is a distinguishable attribute or aspect of something. Features can be physical, functional, perceptual, or contextual, and they are used to describe what something is or what it can do.

In product design and software development, a feature is a specific capability or function provided by a product. Features are described in terms of user needs and are often used to compare products. A feature is not the same as a benefit; the feature is the attribute, while the benefit explains how that attribute helps the user.

In data science and machine learning, a feature (also called a variable) is an input used to build models. Features may be raw measurements or engineered attributes derived from data. Feature selection and feature engineering are important steps in model development.

Geography and cartography use feature to refer to a natural or cultural landmark, such as a mountain, river, or city. In journalism, a feature article is a longer, in-depth story that examines people, events, or issues beyond routine news.

Across disciplines, features function as units of description that identify, differentiate, or explain aspects of objects and systems. The precise meaning depends on context, but the core idea is that a feature is a notable property or capability.