What is vccv-closed?

VCCV-closed refers to a specific type of closure in the context of phonology, particularly in the study of syllable structures in linguistics. A language is considered VCCV-closed if it allows for syllable structures that can have a vowel followed by two consonants and then another vowel, effectively closing off syllables with this pattern. This concept is important for understanding the phonotactic rules governing permissible sound combinations in different languages.