communication

noun

• 1 [mass noun] the imparting or exchanging of information by speaking, writing, or using some other medium:television is an effective means of communication at the moment I am in communication with London
• [count noun] a letter or message containing information or news: a telephone communication
• the successful conveying or sharing of ideas and feelings:there was a lack of communication between Pamela and her parents
• social contact:she gave him some hope of her return, or at least of their future communication

• 2 (communications) means of sending or receiving information, such as telephone lines or computers:satellite communications [as modifier]:a communications network
• [treated as singular] the field of study concerned with the transmission of information.

• 3 (communications) means of travelling or of transporting goods, such as roads or railways:a city providing excellent road and rail communications