From Longman Dictionary of Contemporary Englishcommunicationscommunicationsa) TC[plural] ways of sending information, especially using radio, telephone, or computers Modern communications are enabling more people to work from home. b) TT[plural] roads, railways etc that are used for travelling and sending goodscommunications with Paris has good communications with many European cities. c) [uncountable] the study of using radio, television, cinema etc to communicate a diploma in communications → communication
Examples from the Corpuscommunication with• All communications with this area have been lost.• The site needed excellent communications with the rest of the country.• There he proposed to leave a radio truck for communications with the rear.• It will be even more important for a school to have good communications with parents and the local community.• His communications with Hooker were restored.• Telephone lines got jammed. Communications with the stock exchanges bogged down.