What is another word for closed-class word?
Pronunciation: [klˈə͡ʊzdklˈas wˈɜːd] (IPA) 
A closed-class word is a part of speech that does not easily accept new words. It includes pronouns, prepositions, and conjunctions. Some common synonyms for closed-class words are function words or grammatical words. These words serve a crucial role in a sentence by dictating the structure and grammar of a sentence rather than expressing meaning. Some examples of function words include words like "is," "the," and "of." While function words may seem insignificant in comparison to content words, their function is vital in creating a concise and clear message in a sentence. Closed-class words can be easily identified in a text through their contractions, prepositions, and conjunctions.
