Central

adj. main, principal; in or of the center

n. telephone exchange, operator; central bureau which controls other offices

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Noun
1. a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication
(synonym) telephone exchange, exchange
(hypernym) workplace, work
(hyponym) centrex
(part-holonym) telephone system, phone system

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Adjective
1. serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure"
(synonym) cardinal, fundamental, key, primal
(similar) important, of import
2. in or near a center or constituting a center; the inner area; "a central position"; "central heating and air conditioning"
(antonym) peripheral
(similar) amidship
3. used in the description of a place that in the middle of another place; "the people of Central and Northern Europe"; "country in central Africa"
(pertainym) center, centre, midpoint
4. centrally located and easy to reach; "the central city has good bus service"; "the shop has a central location"
(similar) inner(a)

adj. central; pivotal

nm. telephone exchange, central telephone network system, system for handling many telephone calls

adj. central; middlemost

nf. headquarters; station; exchange