Definition of "Language" :

noun: the mental faculty or power of vocal communication

"Language sets homo sapiens apart from all other animals."

noun: the cognitive processes involved in producing and understanding linguistic communication

"He didn't have the language to express his feelings."

noun: a systematic means of communicating by the use of sounds or conventional symbols

"He taught foreign languages."

noun: a system of words used to name things in a particular discipline

"The language of sociology."

noun: the text of a popular song or musical-comedy number

"The song uses colloquial language."

noun: (language) communication by word of mouth

"He uttered harsh language."