Communications and Public transport

Communications noun - The discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.).

Public transport and communications are semantically related. In some cases you can use "Public transport" instead a noun "Communications".

Public transport noun - Conveyance for passengers or mail or freight.

Communications and public transport are semantically related. You can use "Communications" instead a noun phrase "Public transport".