Some more definitions of language

1:Language is the system of conventional spoken or written symbols by means of which human beings,as members of social group participants in its culture,communicate                (Encyclopaedia Britannica)

2:Languages are the principal system of communication used by particular groups of human beings within the particular society (Linguistic community) of which they are members.

                    It is clearly evident from all these definitions,none of which completely defines the term "language that it is not possible to have a single definition that brings out all the properties of language.On the basis of these definitions one can,however,list out the various characteristics of language.It would,therefore,be better to list these characteristics and discuss these in detail.