7 letters · 9 points in Scrabble
noun a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication
adjective serving as an essential component
adjective in or near a center or constituting a center; the inner area
originEtymology tree Proto-Indo-European *ḱent-der. Ancient Greek κέντρον (kéntron)der. Latin centrum Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālis Latin centrālisbor. English central Borrowed from Latin centrālis, from centrum (“centre”), from Ancient Greek κέντρον (kéntron); by surface analysis, centre + -al.
Etymology from Wiktionary, CC BY-SA 3.0