请问英语语言学高手

题目：请列举至少4种语言的不同的定义,并分析相同点和不同点.

答案：

1.a body of words and the systems for their use common to a people who are of the same community or nation, the same geographical area, or the same cultural tradition

2.communication by voice in the distinctively human manner, using arbitrary sounds in conventional ways with conventional meanings; speech.

3.any system of formalized symbols, signs, sounds, gestures, or the like used or conceived as a means of communicating thought, emotion, etc

4. a set of characters and symbols and syntactic rules for their combination and use, by means of which a computer can be given directions:

相同：They are all used for communication.
不同：Some of them indicates the language for computer, science, math while others may indicate language for other uses.

请列举至少4种语言的不同的定义,并分析相同点和不同点.

4 definitions of language

a systematic means of communicating by the use of sounds or conven