Features are used to describe a [configuration](basics). Four types of features are defined, Word Features, Syntactic Features, Distance Features and Configurational Features. These types are described below.
Usually a configuration is described through a collection of features. Such collections are defined in [Feature Model](fm) files.
## Word features
## Word features
Words feature describe different attributes of the words present in the buffer or in the stack.
Words feature describe different attributes of the words present in the buffer or in the stack.