ABSTRACT
Word classes can be divided into open classes and closed classes. Open classes are readily open to new words; closed classes are limited classes that rarely admit new words. For example, it is easy to create new nouns, but not new pronouns.
Word classes can be divided into open classes and closed classes. Open classes are readily open to new words; closed classes are limited classes that rarely admit new words. For example, it is easy to create new nouns, but not new pronouns.