The phonological level relates differences in sounds to differences in meanings.

The linguistic level comprises morphemes or whole words with attached definitions.

On the syntactical level, words are arranged explicitly in sentences to convey a thought.

The sociolinguistic level of the language system is shaped by social
factors such as age, gender, and social class.

Language is Arbitrary: Language is arbitrary in the sense that there is no inherent relation
between the words of a language and their meanings or the ideas conveyed by them.

Language is Social: Language is a set of conventional communicative signals used by humans for communication in a community. Language exists in society; it is
a means of nourishing and developing culture and establishing human relations.

Language is Symbolic: Language consists of various sound symbols and their graphological counterparts employed to denote some objects, occurrences, or meanings.

Language is Systematic: All languages have phonological and grammatical systems; within a system, there are several sub-systems.

Language is Non-instinctive, Conventional: Language is the outcome of evolution and convention. Each generation transmits this convention on to the next. Like all human institutions, languages change, die, grow, and expand. It is non-instinctive because human beings acquire it. Nobody gets a language in heritage; he accepts it because he has an innate ability.

Language is Productive and Creative: Language has creativity and productivity. The structural elements of human language can be combined to produce new utterances, language changes according to the needs of society.