human action,
human activity,
deed,
act a legal document signed and sealed and delivered to effect a transfer of property and to show the legal right to possess it; "he signed the deed"; "he kept the title to his car in the glove compartment"
transmission the act of sending a message; causing a message to be transmitted
intercommunication mutual communication; communication with each other; "they intercepted intercommunication between enemy ships"
medium an intervening substance through which signals can travel as a means for communication
communication channel,
channel,
line a passage for water (or other fluids) to flow through; "the fields were crossed with irrigation channels"; "gutters carried off the rainwater into a series of channels under the street"
discussion,
discourse,
treatment an extended communication (often interactive) dealing with some particular topic; "the book contains an excellent discussion of modal logic"; "his treatment of the race question is badly biased"
exhortation a communication intended to urge or persuade the recipients to take some action
