with regard to a language, a class of terms which readily accepts new members, like those arising by way of borrowing, word formation, or technological innovation. In practice, this class is almost twin-like with the class of content words because it generally doesn't include grammatical function terms.

OPEN-CLASS WORDS: "Open-class words are most commonly seen now with regard to the internet."
Cite this page: N., Pam M.S., "OPEN-CLASS WORDS," in, April 7, 2013, (accessed September 26, 2020).