Words or expressions used by a particular group or profession (medical jargon).
The phenomenon of vocal and written communication among human beings generally.
Using language to describe aspects of language.
The act of imparting news or information; science and practice of transmitting information.
Those who study language
Double articulation (duality)
Inborn, natural, what we are born with.
The signal (or sign) for a meaning is not logically related to its meaning. In other words, the sound for cat does not sound like a cat or represent an actual cat in any logical way.
Having some degree of connection between the sign itself and what it represents.
Formation of a word from a sound associated with what it is named (e.g. cuckoo, sizzle)
Messages can be both sent and received by the same individual. Not all animals can both send and receive messages (example, the silkworm's mating chemical).
The property of language to require only a relatively small part of the behavior of the speaker and to be context-dependent. In other words, we can talk about this class while driving to the mall! (But, then, dogs can bark and chase squirrels at the same time, too!)